China Naval Modernization: Implications for
U.S. Navy Capabilities—Background andIssues for Congress
Updated January 30, 2024

Congressional Research Service
https://crsreports.congress.gov
RL33153China Naval Modernization: Implications for U.S. Navy Capabilities

Summary
China’s military modernization effort, including its naval modernization effort, is the top focus of
U.S. defense planning and budgeting. China’s naval modernization effort has been underway forabout 30 years, since the early to mid-1990s, and has transformed China’s navy into a much more
modern and capable force. China’s navy is a formidable military force within China’s near-seasregion, and it is conducting a growing number of operations in the broader waters of the Western
Pacific, the Indian Ocean, and waters around Europe.
China’s navy is, by far, the largest of any country in East Asia, and sometime between 2015 and2020 it surpassed the U.S. Navy in numbers of battle force ships, meaning the types of ships thatcount toward the quoted size of the U.S. Navy. DOD states that China’s navy “is the largest navyin the world with a battle force of over 370 platforms, including major surface combatants,
submarines, ocean-going amphibious ships, mine warfare ships, aircraft carriers, and fleet
auxiliaries. Notably, this figure does not include approximately 60 HOUBEI-class patrol
combatants that carry anti-ship cruise missiles (ASCM). The… overall battle force [of China’snavy] is expected to grow to 395 ships by 2025 and 435 ships by 2030.” The U.S. Navy, bycomparison, included 292 battle force ships as of January 29, 2024, and the Navy’s FY2024
budget submission projects that the Navy will include 290 battle force ships by the end of
FY2030. U.S. military officials and other observers are expressing concern or alarm regarding thepace of China’s naval shipbuilding effort, the capacity of China’s shipbuilding industry comparedwith the capacity of the U.S. shipbuilding industry, and resulting trend lines regarding the relative
sizes and capabilities of China’s navy and the U.S. Navy.
China’s naval modernization effort encompasses a wide array of ship, aircraft, weapon, andC4ISR (command and control, communications, computers, intelligence, surveillance, andreconnaissance) acquisition programs, as well as improvements in logistics, doctrine, personnel
quality, education and training, and exercises. China’s navy currently has certain limitations andweaknesses, which it is working to overcome. China’s military modernization effort, including its
naval modernization effort, is assessed as being aimed at developing capabilities for, among otherthings, addressing the situation with Taiwan militarily, if need be; achieving a greater degree ofcontrol or domination over China’s near-seas region, particularly the South China Sea; defending
China’s commercial sea lines of communication (SLOCs), particularly those linking China to the
Persian Gulf; displacing U.S. influence in the Western Pacific; and asserting China’s status as theleading regional power and a major world power. Observers believe China wants its navy to becapable of acting as part of an anti-access/area-denial (A2/AD) force—a force that can deter U.S.
intervention in a conflict in China’s near-seas region over Taiwan or some other issue, or failingthat, delay the arrival or reduce the effectiveness of intervening U.S. forces.
The U.S. Navy has taken a number of actions to counter China’s naval modernization effort.
Among other things, the U.S. Navy has shifted a greater percentage of its fleet to the Pacific;
assigned its most-capable new ships and aircraft to the Pacific; maintained or increased general
presence operations, training and developmental exercises, and engagement and cooperation withallied and other navies in the Indo-Pacific; increased the planned future size of the Navy;
initiated, increased, or accelerated numerous programs for developing new military technologies
and acquiring new ships, aircraft, unmanned vehicles, and weapons; developed new operational
concepts for countering Chinese maritime A2/AD forces; and signaled that the Navy in coming
years will shift to a more-distributed fleet architecture that will feature a substantially greater useof unmanned vehicles. The issue for Congress is whether to approve, reject, or modify the Biden
Administration’s proposed U.S. Navy plans, budgets, and programs for responding to China’s
naval modernization effort.

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Contents
Introduction ..................................................................................................................................... 1
Issue for Congress ..................................................................................................................... 1
Sources and Terminology .......................................................................................................... 1
Background ..................................................................................................................................... 2
Brief Overview of China’s Naval Modernization Effort ........................................................... 2
Numbers of Ships; Comparisons to U.S. Navy ......................................................................... 6
Overview ............................................................................................................................. 6
Ultimate Size and Composition of China’s Navy Not Publicly Known ............................. 7
Number of Ships Is a One-Dimensional Measure, but Trends in Numbers Can Be
of Value Analytically ....................................................................................................... 7
Three Tables Showing Numbers of Chinese and U.S. Navy Ships..................................... 7
Selected Elements of China’s Naval Modernization Effort .................................................... 12
Anti-Ship Missiles ............................................................................................................ 12
Submarines........................................................................................................................ 18
Aircraft Carriers ................................................................................................................ 23
Surface Combatants .......................................................................................................... 31
Amphibious Ships ............................................................................................................. 36
Operations Away from Home Waters................................................................................ 41
U.S. Navy Response................................................................................................................ 43
Overview ........................................................................................................................... 43
Planned Size of Navy ........................................................................................................ 44
Highly Capable Ships, Aircraft, Weapons, and Other Systems ........................................ 44
Fleet Architecture and Operational Concepts ................................................................... 45
Cooperation with Naval Forces of Allies and Other Countries ........................................ 47
Issues for Congress ........................................................................................................................ 47
Overview ........................................................................................................................... 47
U.S.-China Balance of Naval Power................................................................................. 48
Davidson Window/Decade of Concern ............................................................................. 49
Divest to Invest ................................................................................................................. 52
Other Specific Issues......................................................................................................... 52
Legislative Activity for FY2024 .................................................................................................... 56
Coverage in Related CRS Reports .......................................................................................... 56
FY2024 National Defense Authorization Act (H.R. 2670/S. 2226/P.L. 118-31) .................... 57
House ................................................................................................................................ 57
Senate ................................................................................................................................ 57
Conference ........................................................................................................................ 57

FiguresFigure 1. Numbers of Ships in U.S. Navy and China’s Navy, 2000-2030 .................................... 12
Figure 2. DF-21D Anti-Ship Ballistic Missile (ASBM) ................................................................ 13
Figure 3. DF-26 Multi-Role Intermediate-Range Ballistic Missile (IRBM) ................................. 13
Figure 4. Reported Image of Anti-Ship Cruise Missile (ASCM) .................................................. 15
Figure 5. Reported Image of Anti-Ship Cruise Missile (ASCM) .................................................. 16

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Figure 6. Reported Image of Anti-Ship Cruise Missile (ASCM) .................................................. 17
Figure 7. Illustration of Reported Potential Containerized ASCM Launcher ............................... 17
Figure 8. Yuan (Type 039) Attack Submarine (SS) ....................................................................... 20
Figure 9. Shang (Type 093) Attack Submarine (SSN) .................................................................. 20
Figure 10. Jin (Type 094) Ballistic Missile Submarine (SSBN) ................................................... 21
Figure 11. Liaoning (Type 001) Aircraft Carrier ........................................................................... 25
Figure 12. Shandong (Type 002) Aircraft Carrier ......................................................................... 25
Figure 13. Fujian (Type 003) Aircraft Carrier ............................................................................... 26
Figure 14. Fujian (Type 003) Aircraft Carrier ............................................................................... 27
Figure 15. Fujian (Type 003) Aircraft Carrier ............................................................................... 27
Figure 16. J-15 Flying Shark Carrier-Capable Fighter .................................................................. 29
Figure 17. J-15 Flying Shark Carrier-Capable Fighter .................................................................. 30
Figure 18. Renhai (Type 055) Cruiser (or Large Destroyer) ......................................................... 32
Figure 19. Renhai (Type 055) Cruiser (or Large Destroyer) ......................................................... 32
Figure 20. Renhai (Type 055) Cruiser (or Large Destroyer) ......................................................... 33
Figure 21. Luyang III (Type 052D) Destroyer .............................................................................. 34
Figure 22. Jiangkai II (Type 054A) Frigate .................................................................................. 35
Figure 23. Jingdao (Type 056) Corvette ....................................................................................... 36
Figure 24. Yuzhao (Type 071) Amphibious Ship ........................................................................... 37
Figure 25. Type 075 Amphibious Assault Ship ............................................................................. 38
Figure 26. Type 075 Amphibious Assault Ship ............................................................................. 39
Figure 27. Notional Rendering of Possible Type 076 Amphibious Assault Ship .......................... 40
Figure 28. Notional Rendering of Possible Type 076 Amphibious Assault Ship .......................... 40

TablesTable 1. Numbers of Certain Types of Chinese and U.S. Ships Since 2005 ................................... 9
Table 2. Numbers of Chinese and U.S. Navy Battle Force Ships, 2000-2030 .............................. 10
Table 3. Numbers of Chinese and U.S. Navy Ships, 2020-2040 .................................................... 11

Appendixes
Appendix A. Comparing U.S. and Chinese Numbers of Ships and Naval Capabilities ................ 60
Appendix B. U.S. Navy’s Ability to Counter Chinese ASBMs and Hypersonic Weapons ........... 62

Contacts
Author Information........................................................................................................................ 67

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Introduction
Issue for CongressThis report provides background information and issues for Congress on China’s naval
modernization effort and its implications for U.S. Navy capabilities. China’s militarymodernization effort, including its naval modernization effort, is the top focus of U.S. defense
planning and budgeting.1 The issue for Congress is whether to approve, reject, or modify the
Biden Administration’s proposed U.S. Navy plans, budgets, and programs for responding to
China’s naval modernization effort. Congress’s decisions on this issue could affect U.S. Navycapabilities and funding requirements, and the U.S. defense industrial base.

Sources and Terminology
This report is based on unclassified open-source information, such as the annual Department of
Defense (DOD) report to Congress on military and security developments involving China,2 a
2019 Defense Intelligence Agency (DIA) report on China’s military power,3 a 2015 Office ofNaval Intelligence (ONI) report on China’s navy,4 published reference sources such as IHS Jane’sFighting Ships,5 and press reports.
For convenience, this report uses the term China’s naval modernization effort to refer to themodernization not only of China’s navy, but also of Chinese military forces outside China’s navythat can be used to counter U.S. naval forces operating in the Western Pacific, such as land-based
anti-ship ballistic missiles (ASBMs), land-based surface-to-air missiles (SAMs), land-based Air
Force aircraft armed with anti-ship cruise missiles (ASCMs), and land-based long-range radars
for detecting and tracking ships at sea.
China’s military is formally called the People’s Liberation Army (PLA). Its navy is called the
PLA Navy, or PLAN (also abbreviated as PLA[N]), and its air force is called the PLA Air Force,or PLAAF. The PLA Navy includes an air component that is called the PLA Naval Air Force, or
PLANAF. China refers to its ballistic missile force as the PLA Rocket Force (PLARF).
This report uses the term China’s near-seas region to refer to the Yellow Sea, East China Sea, andSouth China Sea—the waters enclosed by the so-called first island chain. The so-called second
island chain encloses both these waters and the Philippine Sea that is situated between thePhilippines and Guam.6

1 For an overview of China’s military, see CRS Report R46808, China’s Military: The People’s Liberation Army

(PLA), by Caitlin Campbell. For more on China’s military modernization effort being the top focus of U.S. defense
planning and budgeting, see CRS Report R43838, Great Power Competition: Implications for Defense—Issues forCongress, by Ronald O'Rourke.
2 Department of Defense, Military and Security Developments Involving the People’s Republic of China 2023, Annual
Report to Congress, released on October 19, 2023, 192 pp. Hereinafter 2023 DOD CMSD.
3 Defense Intelligence Agency, China Military Power, Modernizing a Force to Fight and Win, 2019, 125 pp.
Hereinafter 2019 DIA CMP.
4 Office of Naval Intelligence, The PLA Navy, New Capabilities and Missions for the 21 st Century, undated but releasedin April 2015, 47 pp.
5 IHS Jane’s Fighting Ships 2021-2022, and previous editions.
6 For a map showing the first and second island chains, see 2023 DOD CMSD, p. 69.

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Background
Brief Overview of China’s Naval Modernization Effort
Key overview points concerning China’s naval modernization effort include the following:
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China’s naval modernization effort, which forms part of a broader Chinese
military modernization effort that includes several additional areas of emphasis,7
has been underway for about 30 years, since the early to mid-1990s, and has
transformed China’s navy into a much more modern and capable force.
China’s navy is a formidable military force within China’s near-seas region, and
it is conducting a growing number of operations in more-distant waters, including
the broader waters of the Western Pacific, the Indian Ocean, and waters around
Europe.
China’s navy is, by far, the largest of any country in East Asia, and as shown in
Table 2, sometime between 2015 and 2020, China’s navy surpassed the U.S.
Navy in numbers of battle force ships (meaning the types of ships that counttoward the quoted size of the U.S. Navy), making China’s navy the numericallylargest in the world. DOD states: “The PLAN is the largest navy in the world
with a battle force of over 370 platforms, including major surface combatants,
submarines, ocean-going amphibious ships, mine warfare ships, aircraft carriers,and fleet auxiliaries. Notably, this figure does not include approximately 60
HOUBEI-class patrol combatants that carry anti-ship cruise missiles (ASCM).
The PLAN’s overall battle force is expected to grow to 395 ships by 2025 and435 ships by 2030. Much of this growth will be in major surface combatants.”8
The U.S. Navy, by comparison, included 292 battle force ships as of January 29,
2024, and the Navy’s FY2024 budget submission projects that the Navy will
include 290 battle force ships by the end of FY2030.9
U.S. military officials and other observers are expressing concern or alarm
regarding the pace of China’s naval shipbuilding effort, the capacity of China’s
shipbuilding industry compared with the capacity of the U.S. shipbuilding
industry, and resulting trend lines regarding the relative sizes and capabilities ofChina’s navy and the U.S. Navy.10 China’s navy is viewed as posing a major

7 Other areas of emphasis in China’s military modernization effort include space capabilities, cyber and electronic

warfare capabilities, ballistic missile forces, and aviation forces, as well as the development of emerging militaryapplicable technologies such as hypersonics, artificial intelligence, robotics and unmanned vehicles, directed-energy
technologies, and quantum technologies. For more on China’s military modernization effort in general, see CRS Report
R46808, China’s Military: The People’s Liberation Army (PLA), by Caitlin Campbell. For a discussion of advanced
military technologies, see CRS In Focus IF11105, Defense Primer: Emerging Technologies, by Kelley M. Sayler. U.S.China competition in military capabilities in turn forms one dimension of a broader U.S.-China strategic competition
that also includes political, diplomatic, economic, technological, and ideological dimensions.
8 2023 DOD CMSD, p. 55. See also 2019 DIA CMP, p. 63.
9 For additional discussion, see CRS Report RL32665, Navy Force Structure and Shipbuilding Plans: Background andIssues for Congress, by Ronald O'Rourke.
10 See, for example, Mackenzie Eaglen, “The U.S. Navy Is Falling Behind China, And The Pentagon Knows It,”
19FortyFive, October 31, 2023; Michael Lee, “Chinese Shipbuilding Capacity Over 200 Times Greater Than US, NavyIntelligence Says,” Fox News, September 14, 2023; Joseph Trevithick, “Alarming Navy Intel Slide Warns Of China’s
200 Times Greater Shipbuilding Capacity,” The Drive, July 11, 2023; Chris Bradford, “Point of No Return, US Navy
Faces Being Totally Outgunned by China in Just Seven Years—We Need a Fleet Ready to Fight War Now, Says
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challenge to the U.S. Navy’s ability to achieve and maintain wartime control ofblue-water ocean areas in the Western Pacific—the first such challenge the U.S.
Navy has faced since the end of the Cold War. China’s navy forms a key elementof a Chinese challenge to the long-standing status of the United States as theleading military power in the Western Pacific.
China’s naval ships, aircraft, and weapons are much more modern and capablethan they were at the start of the 1990s, and are comparable in many respects to
those of Western navies. DOD states: “Today, the PLAN is largely composed ofmodern multi-role platforms featuring advanced anti-ship, anti-air, and antisubmarine weapons and sensors.”11 ONI states that “Chinese naval ship design
and material quality is in many cases comparable to [that of] USN [U.S. Navy]
ships, and China is quickly closing the gap in any areas of deficiency.”12
China’s naval modernization effort encompasses a wide array of platform andweapon acquisition programs, including anti-ship ballistic missiles (ASBMs),
anti-ship cruise missiles (ASCMs), submarines, surface ships, aircraft, unmanned
vehicles (UVs),13 and supporting C4ISR (command and control,

Expert,” U.S. Sun, March 1, 2023; Keith Griffith, “China's Naval Fleet Is Growing and the US ‘Can't Keep Up’ with
the Warship Buildup as Beijing Uses Its Sea Power to Project an ‘Increasingly Aggressive Military Posture Globally,’
Navy Secretary Warns,” Daily Mail (UK), February 23, 2023; Brad Lendon and Haley Britzky, “US Can’t Keep Upwith China’s Warship Building, Navy Secretary Says,” CNN, February 22, 2023; Meredith Roaten, “Shipyard
Capacity, China’s Naval Buildup Worries U.S. Military Leaders,” National Defense, January 26, 2023; Oliver Parken
and Tyler Rogoway, “Extremely Ominous Warning About China From US Strategic Command Chief, Admiral Richard
Says ‘The Big One’ with China Is Coming and the ‘Ship Is Slowly Sinking’ in Terms of U.S. Deterrence,” The Drive,
November 6, 2022; Xiaoshan Xue, “As China Expands Its Fleets, US Analysts Call for Catch-up Efforts,” VOA,
September 13, 2022; Aidan Quigley, “Chinese Navy Narrowing Capability Gap with U.S., Analysts Say,” Inside
Defense, November 16, 2021; Alex Hollings, “Just How Big Is China’s Navy? Bigger Than You Think,” Sandboxx,
July 28, 2021; Kyle Mizokami, “China Just Commissioned Three Warships in a Single Day, That’s Almost Half as
Many as the U.S. Will Induct in One Year,” Popular Mechanics, April 27, 2021; Geoff Ziezulewicz, “China’s NavyHas More Ships than the US. Does That Matter?” Navy Times, April 9, 2021; Dan De Luce and Ken Dilanian, “China’s
Growing Firepower Casts Doubt on Whether U.S. Could Defend Taiwan, In War Games, China Often Wins, and U.S.
Warships and Aircraft Are Kept at Bay,” NBC News, March 27, 2021; Brad Lendon, “China Has Built the World’s
Largest Navy. Now What’s Beijing Going to Do with It?” CNN, March 5, 2021; Andrew S. Erickson, “A Guide toChina’s Unprecedented Naval Shipbuilding Drive,” Maritime Executive, February 11, 2021; Stephen Kuper, “Beijing
Steps Up Naval Shipbuilding Program with Eyes on Global Navy,” Defence Connect, January 11, 2021; James E.
Fanell, “China’s Global Navy—Today’s Challenge for the United States and the U.S. Navy,” Naval War College
Review, Autumn 2020, 32 pp.; Ryan Pickrell, “China Is the World’s Biggest Shipbuilder, and Its Ability to Rapidly
Produce New Warships Would Be a ‘Huge Advantage’ in a Long Fight with the US, Experts Say,” Business Insider,
September 8, 2020; Ryan D. Martinson, “Deciphering China’s ‘World-Class’ Naval Ambitions,” U.S. Naval Institute
Proceedings, August 2020; Dave Makichuk, “China’s Navy Shipbuilders Are ‘Outbuilding Everybody,’” Asia Times,
March 11, 2020; Jon Harper, “Eagle vs Dragon: How the U.S. and Chinese Navies Stack Up,” National Defense,
March 9, 2020; H. I. Sutton, “The Chinese Navy Is Building An Incredible Number Of Warships,” Forbes, December
15, 2019; Nick Childs and Tom Waldwyn, “China’s Naval Shipbuilding: Delivering on Its Ambition in a Big Way,”International Institute for Strategic Studies (IISS), May 1, 2018; James R. Holmes and Toshi Yoshihara, “Taking Stockof China’s Growing Navy: The Death and Life of Surface Fleets,” Orbis, Spring 2017: 269-285.
For articles offering differing perspectives, see, for example, David Axe, “The Chinese Navy Can’t Grow Forever—
The Slowdown Might Start Soon,” Forbes, November 12, 2020; Mike Sweeney, Assessing Chinese Maritime Power,
Defense Priorities, October 2020, 14 pp.
11 2023 DOD CMSD, p. 53.
12 Source: Unclassified ONI information paper prepared for Senate Armed Services Committee, subject “UPDATED
China: Naval Construction Trends vis-à-vis U.S. Navy Shipbuilding Plans, 2020-2030,” February 2020, p. 3. Provided
by Senate Armed Services Committee to CRS and CBO on March 4, 2020, and used in this CRS report with thecommittee’s permission.
13 See, for example, H. I. Sutton, “China Reveals New Heavily Armed Extra-Large Uncrewed Submarine,” Naval(continued...)Congressional Research Service

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communications, computers, intelligence, surveillance, and reconnaissance)systems. China’s naval modernization effort also includes improvements inlogistics, doctrine, personnel quality, education and training, and exercises.14
China’s military modernization effort, including its naval modernization effort, isassessed as being aimed at developing capabilities for, among other things,
addressing the situation with Taiwan militarily, if need be; achieving a greater
degree of control or domination over China’s near-seas region, particularly theSouth China Sea; enforcing China’s view that it has the right to regulate foreign
military activities in its 200-mile maritime exclusive economic zone (EEZ);15
defending China’s commercial sea lines of communication (SLOCs), particularly
those linking China to the Persian Gulf; displacing U.S. influence in the Western
Pacific; and asserting China’s status as the leading regional power and a major
world power.16 Additional missions for China’s navy include conducting
maritime security (including antipiracy) operations, evacuating Chinese nationals
from foreign countries when necessary, and conducting humanitarianassistance/disaster response (HA/DR) operations.
Observers believe China wants its navy to be capable of acting as part of an antiaccess/area-denial (A2/AD) force—a force that can deter U.S. intervention in a
conflict in China’s near-seas region over Taiwan or some other issue, or failingthat, delay the arrival or reduce the effectiveness of intervening U.S. forces.
The planned ultimate size and composition of China’s navy is not publicly
known. In contrast to the U.S. Navy, China does not release a navy force-levelgoal or detailed information about planned ship procurement rates, planned total
ship procurement quantities, planned ship retirements, and resulting projected
force levels.
Although China’s naval modernization effort has substantially improved China’s
naval capabilities, China’s navy currently is assessed as having limitations or
weaknesses in certain areas,17 including joint operations with other parts ofChina’s military,18 anti-submarine warfare (ASW), long-range targeting, a limited
capacity for carrying out at-sea resupply of combatant ships operating far from

News, February 23, 2023; Ryan Martinson, “Gliders With Ears: A New Tool in China’s Subsea Surveillance Toolbox,”
Maritime Executive, March 21, 2022; Gabriel Honrada, “Underwater Drones Herald Sea Change in Pacific Warfare,”
Asia Times, January 12, 2022.
Ryan Fedasiuk, “Leviathan Wakes: China’s Growing Fleet of Autonomous Undersea Vehicles,” Center forInternational Maritime Security (CIMSEC), August 17, 2021.
14 See, for example, Roderick Lee, “The PLA Navy’s ZHANLAN Training Series: Supporting Offensive Strike on theHigh Seas,” China Brief, April 13, 2020.
15 For additional discussion, see CRS Report R42784, U.S.-China Strategic Competition in South and East China Seas:
Background and Issues for Congress, by Ronald O'Rourke.
16 For additional discussion, see Ryan D. Martinson, “Deciphering China’s ‘World-class’ Naval Ambitions,” U.S.
Naval Institute Proceedings, August 2020.
17 For a discussion focusing on these limitations or weaknesses, see Mike Sweeney, Assessing Chinese Maritime
Power, Defense Priorities, October 2020, 14 pp. See also Tai Ming Cheung, “Russia’s Ukraine Disaster Exposes
China’s Military Weakness,” Foreign Policy, October 24, 2022.
18 See, for example, Ben Noon and Chris Bassler, “Schrodinger’s Military? Challenges for China’s MilitaryModernization Ambitions,” War on the Rocks, October 14, 2021.

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home waters,19 a limited number of overseas bases and support facilities,20 a needto train large numbers of personnel to crew its new ships,21 non-commissioned
officers (NCOs) that are not empowered by unit commanders through missioncommand to achieve a commander’s intent,22 and a lack of recent combat
experience.23 China is working to reduce or overcome such limitations andweaknesses.24 Although China’s navy has limitations and weaknesses, it may
19 See, for example, Felix K. Chang, “Sustaining the Chinese Navy’s Operations at Sea: Bigger Fists, Growing Legs,”

Foreign Policy Research Institute, May 3, 2023; Will Mackenzie, “Commentary: It’s the Logistics, China,” National
Defense, June 10, 2020.
20 See, for example, Kristin Huang, “Size of China’s Navy May Be Closing Gap on US Fleet But What Can the PLA
Do with Just One Overseas Naval Base?” South China Morning Post, March 14, 2021.
21 See, for example, Minnie Chan, “China’s Navy Goes Back to Work on Big Ambitions but Long-Term Gaps
Remain,” South China Morning Post, August 22, 2020. See also Mallory Shelbourne, “At-Sea Political Officers Could
Pose Problems for Chinese Navy in War, Experts Say,” USNI News, September 20, 2023.
22 See, for example, Rich Abott, “INDOPACOM Official Names Chinese Military Structure Limitations And Russian
Debts To China,” Defense Daily, October 12, 2023.
23 Alastair Gale, “China’s Military Is Catching Up to the U.S. Is It Ready for Battle?” Wall Street Journal, October 20,
2022; Benjamin Brimelow, “China’s Military Is Growing Rapidly, But It Hasn't Been ‘Tested’ Like US Troops Have,
Former Top US Admiral Says,” Business Insider, March 29, 2022. See also Andrew Scobell, “Xi Jinping’s Worst
Nightmare: A Potemkin People’s Liberation Army,” War on the Rocks, May 1, 2023.
In November 2023, The Economist published a collection of articles regarding weaknesses and limitations in China’s
military as a whole, including its navy. The online landing page for the collection is “Unknown Soldiers,
Overestimating China’s Armed Forces Would Be Dangerous, Argues Jeremy Page,” Economist, November 11, 2023.
Individual articles in the collection include the following: “How Scary is China? America Must Understand China’s
Weaknesses as Well as Its Strengths,” Economist, November 9, 2023; “The People’s Liberation Army Is Not Yet as
Formidable as the West Fears,” Economist, November 6, 2023; “From Hypersonic Missiles to Undersea Drones, The
PLA Is Making Leaps, But China’s Military Tech Still Lags Behind the West’s,” Economist, November 6, 2023;“China Is Struggling to Recruit Enough Highly Skilled Troops,” Economist, November 6, 2023; “Xi Jinping Worries
That China’s Troops Are Not Ready to Fight,” Economist, November 6, 2023; “Xi Jinping Is Obsessed with Political
Loyalty in the PLA, Ideology Is Undermining China’s Drive to Prepare Forces for Combat,” Economist, November 6,2023; “Invading Taiwan Would Be a Logistical Minefield for China,” Economist, November 6, 2023. See also Paul
Dibb, “Be Alert to China’s Military Weaknesses,” Strategist, December 1, 2024.
The use of a dual command structure in the crews of larger Chinese ships, involving both a commanding officer and apolitical officer, has been raised as a source of potential reduced command effectiveness in certain tactical situations.
See Mallory Shelbourne, “At-Sea Political Officers Could Pose Problems for Chinese Navy in War, Experts Say,”
USNI News, September 20, 2023; Roderick Lee, PLA Navy Submarine Leadership - Factors Affecting Operational
Performance, China Maritime Studies Institute (CMSI), U.S. Naval War College, June 2023, 21 pp.; “Leadership:
China Cripples Naval Officers,” Strategy Page, July 18, 2020.
Some observers argue that corruption in China’s shipbuilding companies may be a source of weaknesses in China’s
naval modernization effort. See, for example, Zi Yang, “The Invisible Threat to China’s Navy: Corruption,” Diplomat,
May 19, 2020. See also Bloomberg News, “China’s Military Probes Slew of Graft Issues Going Back to 2017,”
Bloomberg, July 26, 2023; Gordan G. Chang, “China's Military Is Nowhere Near as Strong as the CCP Wants You toThink,” Newsweek, June 16, 2023; Frank Chen, “Ex-PLA Navy Chief in Deep Water Amid War on Graft,” Asia Times,
June 26, 2020.
Regarding corruption in China’s military in general, see, for example, “Xi Jinping Is Struggling to Stamp Out Graft in
the PLA, How Will It Affect China’s Fighting Ability?” Economist, January 11, 2024; Chun Han Wong, “China’s
Military Shake-Up Raises Questions About Combat Readiness,” Wall Street Journal, January 4, 2024; Peter Martin andJennifer Jacobs, “US Intelligence Shows Flawed China Missiles Led Xi to Purge Army,” Wall Street Journal,
December 6, 2023. For an alternative perspective, see Alex Velez-Green, “Corruption in China’s Military Is No Excuse
for American Complacency,” Defense News, January 22, 2024; John Grady, “Chinese Military Corruption Won’t Slow
PLA Expansion, Panel Says,” USNI News, October 31, 2023.
24 For example, China’s naval shipbuilding programs were previously dependent on foreign suppliers for some shipcomponents. ONI, however, states that “almost all weapons and sensors on Chinese naval ships are produced incountry, and China no longer relies on Russia or other countries for any significant naval ship systems.” (Source:
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nevertheless be sufficient for performing missions of interest to Chinese leaders.
As China’s navy reduces its weaknesses and limitations, it may become sufficientto perform a wider array of potential missions.
In addition to modernizing its navy, China has substantially increased the sizeand capabilities of its coast guard. DOD states that China’s coast guard is “thelargest maritime law enforcement fleet in the world.”25 China also operates a
sizeable maritime militia that includes a large number of fishing vessels. China
relies primarily on its maritime militia and coast guard to assert and defend its
maritime claims in its near-seas region, with the navy operating over the horizon
as a potential backup force.26

Numbers of Ships; Comparisons to U.S. Navy
Overview
DOD states: “The PLAN is the largest navy in the world with a battle force of over 370
platforms, including major surface combatants, submarines, ocean-going amphibious ships, mine
warfare ships, aircraft carriers, and fleet auxiliaries. Notably, this figure does not include
approximately 60 HOUBEI-class patrol combatants that carry anti-ship cruise missiles (ASCM).
The PLAN’s overall battle force is expected to grow to 395 ships by 2025 and 435 ships by 2030.
Much of this growth will be in major surface combatants.27 DIA states that “the PLAN is rapidly
Naval Construction Trends vis-à-vis U.S. Navy Shipbuilding Plans, 2020-2030,” February 2020, pp. 2-3. Provided by
Senate Armed Services Committee to CRS and CBO on March 4, 2020, and used in this CRS report with thecommittee’s permission.) Regarding the ASW capabilities of China’s Navy, DOD states
The PLAN is also improving its anti-submarine warfare capabilities through the development of its
surface combatants and special mission aircraft, but it continues to lack a robust deep-water antisubmarine warfare (ASW) capability.
(2023 DOD CMSD, p. 56.)
See also Gabriel Honrada, “China Simulates ‘Z-day’ Total Sea War with the US,” Asia Times, July 5, 2023; Stephen
Chen, “Chinese Military Conjures World War Z Scenario of All-Out Conflict to Test and Evaluate New Navy
Weapons,” South China Morning Post, June 28, 2023; Felix K. Chang, “Sustaining the Chinese Navy’s Operations at
Sea: Bigger Fists, Growing Legs,” Foreign Policy Research Institute, May 3, 2023; Bryan Clark, “Submarines Will Not
Solve America’s Eroding Undersea Advantage,” Washington Examiner, December 5, 2022; Ryan D. Martinson andConor Kennedy, “Using the Enemy to Train the Troops—Beijing’s New Approach to Prepare its Navy for War,” China
Brief, March 25, 2022; Samuel Cranny-Evans, “China’s Maritime Surveillance Network: Bold Moves for Ocean
Dominance,” Jane’s International Defence Review, February 17, 2022.
25 DOD states that
The CCG’s [China Coast Guard’s] continued expansion and modernization makes it the largest
maritime law enforcement fleet in the world. Newer CCG vessels are larger and more capable thanolder vessels, allowing them to operate further offshore and remain on station longer. While exact
numbers are unavailable, open-source reporting and commercial imagery counts indicate the CCG
has over 150 regional and oceangoing patrol vessels (more than 1,000 tons). These larger vessels
include over 20 corvettes transferred from the PLAN, which were modified for CCG operations. ,The newer, larger CCG vessels are equipped with helicopter facilities, high-capacity watercannons, multiple interceptor boats and guns ranging from 20 to 76 millimeters., Revised estimatesindicate the CCG operates more than 50 regional patrol combatants (more than 500 tons), which
can be used for limited offshore operations, and an additional 300 coastal patrol craft (100 to 499
tons).
(2023 DOD CMSD, pp. 79-80. See also 2019 DIA CMP, p. 78.)
26 For additional discussion, see 2023 DOD CMSD, pp. 79-82, and CRS Report R42784, U.S.-China Strategic
Competition in South and East China Seas: Background and Issues for Congress, by Ronald O'Rourke.
27 2023 DOD CMSD, p. 55. See also 2019 DIA CMP, p. 63.

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retiring older, single-mission warships in favor of larger, multimission ships equipped withadvanced antiship, antiair, and antisubmarine weapons and sensors and C2 [command andcontrol] facilities.”28

Ultimate Size and Composition of China’s Navy Not Publicly Known
The planned ultimate size and composition of China’s navy is not publicly known. The U.S. Navymakes public its force-level goal and regularly releases a 30-year shipbuilding plan that shows
planned procurements of new ships, planned retirements of existing ships, and resulting projected
force levels, as well as a five-year shipbuilding plan that shows, in greater detail, the first five
years of the 30-year shipbuilding plan.29 In contrast, China does not release a navy force-levelgoal or detailed information about planned ship procurement rates, planned total shipprocurement quantities, planned ship retirements, or resulting projected force levels. The ultimate
size and composition of China’s navy might be an unsettled and evolving issue among Chinese
military and political leaders. One observer states that “it seems the majority of past foreign
projections of Chinese military and Chinese navy procurement scale and speed have been
underestimates…. All military forces have a desired force requirement and a desired ‘criticalmass’ to aspire toward. Whether the Chinese navy is close to its desired force or not, is of nosmall consequence.”30

Number of Ships Is a One-Dimensional Measure, but Trends in Numbers Can
Be of Value AnalyticallyRelative U.S. and Chinese naval capabilities are sometimes assessed by showing comparative
numbers of U.S. and Chinese ships (or comparative aggregate fleet tonnages). Although the total
number of ships in a navy (or a navy’s aggregate tonnage) is relatively easy to calculate, it is a
one-dimensional measure that leaves out numerous other factors that bear on a navy’s capabilities
and how those capabilities compare to its assigned missions. As a result, as discussed in further
detail in Appendix A, comparisons of the total numbers of ships in China’s navy and the U.S.
Navy (or aggregate tonnages) are highly problematic as a means of assessing relative U.S. andChinese naval capabilities and how those capabilities compare to the missions assigned to the twonavies. At the same time, however, an examination of trends over time in these relative numbersof ships (or aggregate tonnages) can shed some light on how the relative balance of U.S. andChinese naval capabilities might be changing over time.

Three Tables Showing Numbers of Chinese and U.S. Navy Ships
Table Showing Figures from Annual DOD Reports
Table 1 shows numbers of certain types of Chinese navy ships—those that might be thought of as
the principal combat ships of China’s navy—from 2005 to the present, along with the number ofChina coast guard ships from 2017 to the present, as presented in DOD’s annual reports on
military and security developments involving China. As can be seen in Table 1, most types ofChinese navy ships shown in the table have increased numerically since 2005.
28 2019 DIA CMP, p. 69.
29 For more information on the U.S. Navy’s force-level goal, 30-year shipbuilding plan, and five-year shipbuilding

plan, see CRS Report RL32665, Navy Force Structure and Shipbuilding Plans: Background and Issues for Congress,by Ronald O'Rourke.
30 Rick Joe, “Hints of Chinese Naval Procurement Plans in the 2020s,” Diplomat, December 25, 2020.

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China Naval Modernization: Implications for U.S. Navy Capabilities

As can be seen in Table 1, about 53% of the increase since 2005 in the total number of Chinese
navy ships shown in the table (a net increase of 59 ships out of a total net increase of 112 ships)
resulted from increases in missile-armed fast patrol craft starting in 2009 (a net increase of 9
ships) and corvettes starting in 2014 (50 ships). These are the smallest surface combatants shownin the table. The 50-ship increase in corvettes is due to the Jingdao (Type 056) corvette program
discussed later in this report. ONI states that “a significant portion of China’s Battle Forceconsists of the large number of new corvettes and guided-missile frigates recently built for the
PLAN.”31 As can also be seen in the table, most of the remaining increase since 2005 in thenumber of Chinese navy ships shown in the table is accounted for by increases in cruisers anddestroyers (29 ships) and amphibious ships (17 ships).
Table 1 lumps together less capable older Chinese ships with more capable modern Chinese
ships. In examining the numbers in the table, it can be helpful to keep in mind that for many of
the types of Chinese ships shown in the table, the percentage of the ships accounted for by morecapable modern designs was growing over time, even if the total number of ships for those types
was changing little.
For reference, Table 1 also shows the total number of U.S. Navy battle force ships (meaning thetypes of ships that count toward the quoted size of the U.S. Navy), and compares it to the total
number of the types of Chinese ships that are shown in the table.32 The result is an apples-vs.oranges comparison, because the Chinese figures exclude certain ship types, such as auxiliary andsupport ships, while the U.S. Navy figure includes auxiliary and support ships but excludes patrol
craft (although the U.S. Navy has very few patrol craft). Changes over time in this apples-vs.oranges comparison, however, can be of value in understanding trends in the comparative sizes of
the U.S. and Chinese navies.
On the basis of the figures in Table 1, it might be said that in 2015, the total number of principal
combat ships in China’s navy (a figure that excludes PLAN auxiliary and support ships) surpassed
the total number of U.S. Navy battle force ships (a figure that includes U.S. Navy auxiliary andsupport ships). It is important, however, to keep in mind the differences in composition between
the two navies. The U.S. Navy, for example, has many more aircraft carriers, nuclear-powered
submarines, and cruisers and destroyers, while China’s navy has many more diesel attack
submarines, frigates, and corvettes.

Table Showing ONI Figures from February 2020
Table 2 shows comparative total numbers of Chinese and U.S. battle force ships (as well as
specific figures for certain types of ships that contribute toward China’s total number of battle
force ships) from 2000 to 2030, with the figures for 2025 and 2030 being projections. The figures
for China’s ships are taken from an ONI information paper of February 2020. (As noted earlier,battle force ships are the types of ships that count toward the quoted size of the U.S. Navy.) For
China, the total number of battle force ships shown excludes the missile-armed coastal patrol
craft shown in Table 1, but includes auxiliary and support ships that are not shown in Table 1.
Compared to Table 1, the figures in Table 2 come closer to providing an apples-to-apples

31 Source: Unclassified ONI information paper prepared for Senate Armed Services Committee, subject “UPDATED

China: Naval Construction Trends vis-à-vis U.S. Navy Shipbuilding Plans, 2020-2030,” February 2020, p. 4. Provided
by Senate Armed Services Committee to CRS and CBO on March 4, 2020, and used in this CRS report with thecommittee’s permission.
32 The DOD report generally covers events of the prior calendar year. Thus, the 2021 edition covers events during
2020, and so on for earlier years. Similarly, for the U.S. Navy figures, the 2021 column in Table 1 shows the figure forthe end of FY2020, and so on for earlier years.

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comparison of the two navies’ numbers of ships, although it could be argued that China’s missilearmed coastal patrol craft can be a significant factor for operations within the first island chain.
As shown in Table 2, China’s navy surpassed the U.S. Navy in terms of total number of battle
force ships sometime between 2015 and 2020. As mentioned earlier in connection with Table 1,
however, it is important to keep in mind the differences in composition between the two navies.
The U.S. Navy, for example, currently has many more aircraft carriers, nuclear-powered
submarines, and cruisers and destroyers, while China’s navy currently has many more diesel
attack submarines, frigates, and corvettes.
Table 1. Numbers of Certain Types of Chinese and U.S. Ships Since 2005
Figures for Chinese ships taken from annual DOD reports on military and security developments
involving China for the years 2005-2023
Principal Chinese combatant ships—excludes auxiliary and support ships. (Thefigure for total U.S. battle force ships shown toward the right includes auxiliaryand support ships, but excludes patrol craft, of which the Navy has very few.)
Submarines

Surface combatants

Amphibious ships

Year of
DOD
report

SSB

SSN

SS

CV

CG

DD

FF

FFL

PC

2005

1

6

51

0

0

21

43

0

2006

1

5

50

0

0

25

45

2007

1

5

53

0

0

25

2008

1

5

54

0

0

2009

2

6

54

0

2010

2

6

54

2011

2

5

2012

2

2013

Total
U.S.
battle
force
ships

U.S.
vs.
China

LHA

LST/
LPD

LSM

Total

China
Coast
Guard

51

0

20

23

216

n/a

292

+76

0

45

0

25

25

221

n/a

281

+60

47

0

41

0

25

25

222

n/a

281

+59

29

45

0

45

0

26

28

233

n/a

279

+46

0

27

48

0

70

0

27

28

262

n/a

282

+20

0

0

25

49

0

85

0

27

28

276

n/a

285

+9

49

0

0

26

53

0

86

0

27

28

276

n/a

288

+12

5

48

0

0

26

53

0

86

0

28

23

271

n/a

284

+13

3

5

49

1

0

23

52

0

85

0

29

26

273

n/a

287

+14

2014

3

5

51

1

0

24

49

8

85

0

29

28

283

n/a

285

+2

2015

4

5

53

1

0

21

52

15

86

0

29

28

294

n/a

289

-5

2016

4

5

57

1

0

23

52

23

86

0

30

22

303

n/a

271

-32

2017

4

5

54

1

0

21

56

23

88

0

34

21

317

185

275

-42

2018

4

5

57

1

0

28

51

28

86

0

33

23

306

240

279

-27

2019

4

6

50

1

0

33

54

42

86

0

37

22

335

248

286

-49

2020

4

6

46

2

1

32

49

49

86

0

37

21

333

255

290

-43

2021

6

9

56

2

1

32

48

51

86

57

348

223

296

-52

2022

6

9

56

2

6

36

45

50

84

57

351

224

294

-57

2023

6

6

47

2

8

42

47

50

60

328

142

289

-39

+2

+8

+21

+4

+50

+9

+112

n/a

-3

-115

3

57

Change from 2005 to 2023
+5

0

-4

+17

Sources: Table prepared by CRS based on 2005-2023 editions of annual DOD report to Congress on militaryand security developments involving China (known for 2009 and prior editions as the report on China military

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power), and (for U.S. Navy ships) U.S. Navy data as presented in CRS Report RL32665, Navy Force Structure andShipbuilding Plans: Background and Issues for Congress, by Ronald O'Rourke. Consistent with the DOD report,
which shows data for China for the year prior to the report’s publication date, the U.S. Navy data here shows
data for the year prior to the prior to the DOD report’s publication date. For example, the figure of 294 shownfor the U.S. Navy for 2022 shows the number of U.S. Navy ships at the end of FY2021. As shown elsewhere inthis CRS report, China reportedly commissioned its first two LHAs in 2021 and a third in 2022. The 2023
edition of the DOD report is the first to show a separate figure for LHAs.
Key to abbreviations: n/a = data not available in annual DOD report. SSB = ballistic missile submarines. SSN= nuclear-powered attack submarines. SS = diesel attack submarines. CV = aircraft carriers. CG = cruisers. DD= destroyers. FF = frigates. FFL = corvettes (i.e., light frigates). PC = missile-armed coastal patrol craft. LST =amphibious tank landing ship. LPD = amphibious transport dock ship. LSM = amphibious medium landing ship.
(Starting with the 2021 edition, the annual DOD report shows a combined figure for LST/LPD and LSM.)
Column for Total PLAN ship types shown to right, which shows what might be thought of as the principal
combat ships of China’s navy, does not include other PLAN ship types not shown to right, such as auxiliary andsupport ships. CCG = China Coast Guard ships. U.S. total = Total U.S. Navy battle force ships, which includes
auxiliary and support ships but excludes patrol craft (although the U.S. Navy has very few patrol craft). U.S. vs.
PLAN ship types shown = total U.S. Navy battle force ships compared to the column for Total PLAN shiptypes shown to right.
Notes: The DOD report generally covers events of the prior calendar year. Thus, the 2021 edition covers
events during 2020, and so on for earlier years. Similarly, for the U.S. Navy figures, the 2021 column shows thefigure for the end of FY2020, and so on for earlier years.

Table 2. Numbers of Chinese and U.S. Navy Battle Force Ships, 2000-2030
Figures for Chinese ships taken from ONI information paper of February 2020
2000

2005

2010

2015

2020

2025

2030

Ballistic missile submarines

1

1

3

4

4

6

8

Nuclear-powered attack submarines

5

4

5

6

7

10

13

Diesel attack submarines

56

56

48

53

55

55

55

Aircraft carriers, cruisers, destroyers

19

25

25

26

43

55

65

Frigates, corvettes

38

43

50

74

102

120

135

Total number of China navy battle force ships,
including types not shown above

210

220

220

255

360

400

425

Total U.S. Navy battle force ships

318

282

288

271

296

286

290

U.S. total above compared to China total above

+108

+62

+68

+16

-64

-114

-135

Selected ship types

Sources: Table prepared by CRS. Source for China’s navy: Unclassified ONI information paper prepared for
Senate Armed Services Committee, subject “UPDATED China: Naval Construction Trends vis-à-vis U.S. Navy
Shipbuilding Plans, 2020-2030,” February 2020, 4 pp. Provided by Senate Armed Services Committee to CRS andCBO on March 4, 2020, and used in this CRS report with the committee’s permission. Figures are for end of
calendar year. Source for figures for U.S. Navy: U.S. Navy data; figures are for end of fiscal year.
Note: In the column for the year 2000, the ONI information paper showed a figure for the total number ofChina navy battle force ships of 110, but the Navy later stated that this was a typo, and that the correct figure is210.

Table Showing U.S. Navy Figures from October 2020
Table 3 shows numbers of certain types of Chinese navy ships in 2020, and projections of thosenumbers for 2025, 2030, and 2040, along with the total number of U.S. Navy battle force ships in
2020, and projections of those numbers for 2025, 2030, and 2040. The figures for China’s ships
were provided by the Navy at the request of CRS. As with Table 1, the result is an apples-vs.oranges comparison between the Chinese navy and U.S. Navy totals, because the Chinese total

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excludes certain ship types, such as auxiliary and support ships, while the U.S. Navy total
includes auxiliary and support ships, but excludes patrol craft (although the U.S. Navy has very
few patrol craft).
As shown in Table 3, the U.S. Navy projects that between 2020 and 2040, the total number ofChinese ships of the types shown in the table will increase by 94, or about 39%, with most of that
increase (77 ships out of 94) coming from roughly equal increases in numbers of large surface
combatants (cruisers and destroyers—39 ships) and small surface combatants (frigates andcorvettes—38 ships). Numbers of ballistic missile submarines and nuclear-powered attack
submarines are each projected to more than double between 2020 and 2040, and the total numberof diesel attack submarines is projected to remain almost unchanged. The number of large surface
combatants is projected to almost double, and the number of small surface combatants is
projected to increase by more than one-third. Numbers of larger (LHA- and LPD-type)amphibious ships are projected to increase, and the number of smaller (LST-type) amphibious
ships is projected to decline, with the result that the total number of amphibious ships of all kinds
is projected to decline slightly.
Table 3. Numbers of Chinese and U.S. Navy Ships, 2020-2040
Figures for Chinese ships are from U.S. Navy, reflecting data as of October 2020
2020

2025

2030

2040

2040 change
from 2020

Ballistic missile submarines

4

6

8

10

+6

Nuclear-powered attack submarines

6

10

14

16

+10

Diesel attack submarines

47

47

46

46

-1

Aircraft carriers

2

3

5

6

+4

Cruisers and destroyers

41

52

60

80

+39

Frigates and corvettes

102

120

135

140

+38

LHA-type amphibious assault ships

0

4

4

6

+6

LPD-type amphibious ships

7

10

14

14

+7

LST-type amphibious tank landing ships

30

24

24

15

-15

TOTAL for China of types shown above

239

276

310

333

+94

TOTAL number of U.S. Navy battle force ships

297

286

290

329 or 331 or 352+32 or +34 or +55

U.S. total above compared to China total above

+58

+10

-20

-4 or -2 or +19-62 or -60 or -39

Ship type

Source: For Chinese navy ships: U.S. Navy data provided to CRS by Navy Office of Legislative Affairs, reflecting
data as of October 26, 2020.
Note: The figures for the U.S. Navy for 2040 show different alternatives presented in the Navy’s FY2024 budget
submission.

Figure 1 presents one observer’s graphic comparison of numbers of ships in the U.S. Navy andChina’s navy for the period 2000-2030, citing data presented in May 2023 and April 2023
editions, respectively, of this CRS report and the CRS overview report on U.S. Navy force
structure and shipbuilding.33

33 CRS Report RL32665, Navy Force Structure and Shipbuilding Plans: Background and Issues for Congress, by

Ronald O'Rourke.

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Figure 1. Numbers of Ships in U.S. Navy and China’s Navy, 2000-2030

Source: Mackenzie Eaglen, 10 Ways the United States is Falling Behind China in National Security, American
Enterprise Institute (AEI), August 2023, Figure 2 on p. 5.

Selected Elements of China’s Naval Modernization Effort
This section provides a brief overview of elements of China’s naval modernization effort thathave attracted frequent attention from observers.

Anti-Ship Missiles
Anti-Ship Ballistic Missiles (ASBMs)
China has fielded two types of land-based ballistic missiles with a capability of hitting ships at
sea at extended ranges—the DF-21D (Figure 2), a road-mobile anti-ship ballistic missile(ASBM) with a range of more than 1,500 kilometers (i.e., more than 810 nautical miles), and theDF-26 (Figure 3), a road-mobile, multi-role intermediate range ballistic missile (IRBM) with amaximum range of 3,000 kilometers to 4,000 kilometers34 (i.e., about 1,620 nautical miles to
2,160 nautical miles) that DOD says “is designed to rapidly swap conventional and nuclear
warheads and is capable of conducting precision land-attack and anti-ship strikes in the Western
Pacific, the Indian Ocean, and the SCS [South China Sea] from mainland China.”35

34 2023 DOD CMSD, p. 66. A map on page 69 of the report shows the DF-26 with a range of 4,000 kilometers.
35 2023 DOD CMSD, p. 67. The report similarly states on page 89: “The DF-26 intermediate range ballistic missile is acapable of ranging Guam and is capable of conducting nuclear, precision conventional, and maritime attacks.”

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Figure 2. DF-21D Anti-Ship Ballistic Missile (ASBM)

Source: Cropped version of photograph accompanying Andrew S. Erickson, “China’s DF-21D Anti-Ship Ballistic
Missile (ASBM)—Officially Revealed at 3 September Parade—Complete Open Source Research Compendium,”
AndrewErickson.com, September 10, 2015, accessed August 28, 2019.

Figure 3. DF-26 Multi-Role Intermediate-Range Ballistic Missile (IRBM)

Source: Cropped version of photograph accompanying Missile Defense Project, “Dong Feng-26 (DF-26),”
Missile Threat, Center for Strategic and International Studies, January 8, 2018, last modified January 15, 2019,
accessed August 28, 2019.

Until 2020, reported test flights of DF-21s and SDF-26s had not involved attempts to hit moving
ships at sea. A November 14, 2020, press report stated that an August 2020 test firing of DF-21
and DF-26 ASBMs into the South China resulted in the missiles successfully hitting a moving
target ship south of the Paracel Islands.36 A December 3, 2020, press report stated that Admiral
Philip Davidson, the commander of U.S. Indo-Pacific Command, “confirmed, for the first time
36 Kristin Huang, “China’s ‘Aircraft-Carrier Killer’ Missiles Successfully Hit Target Ship in South China Sea, PLA

Insider Reveals,” South China Morning Post, November 14, 2020. See also Peter Suciu, “Report: China’s ‘AircraftCarrier Killer’ Missiles Hit Target Ship in August,” National Interest, November 15, 2020; Andrew Erickson, “China’s
DF-21D and DF-26B ASBMs: Is the U.S. Military Ready?” Real Clear Defense, November 16, 2020.

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from the U.S. government side, that China’s People’s Liberation Army has successfully tested ananti-ship ballistic missile against a moving ship.”37
Observers have expressed strong concerns about China’s ASBMs, because such missiles, in
combination with broad-area maritime surveillance and targeting systems, would permit China toattack aircraft carriers, other U.S. Navy ships, or ships of allied or partner navies operating in theWestern Pacific. The U.S. Navy has not previously faced a threat from highly accurate ballistic
missiles capable of hitting moving ships at sea. For this reason, some observers have referred to
ASBMs as a “game-changing” weapon.
In April 2022, it was reported that China may have developed a new type of ASBM, perhaps
designated the YJ-21, that is small enough to fit into the vertical launch tube of a surface
combatant, and that China had test fired such a weapon from a Type 055 cruiser (or large
destroyer).38
China reportedly is developing hypersonic glide vehicles that, if incorporated into Chinese
ASBMs, could make Chinese ASBMs more difficult to intercept. A February 2, 2023, press reportstatesFor the first time, the PLA has officially revealed the performance of its advanced antiship hypersonic missile, sending a warning to the US amid high tensions in the Taiwan
Strait, Chinese analysts said.
China’s YJ-21, or Eagle Strike-21, has a terminal speed of Mach 10, cannot be interceptedby any anti-missile weapons system in the world and can launch lethal strikes towards
enemy ships, according to an article posted by the official Weibo account of the People’s
Liberation Army Strategic Support Force on Monday [January 30]....
The article declares that the missile travels six times the speed of sound all the way, andhas a terminal speed of 10 times the speed of sound, meaning a speed of 3,400 metres per
second (11,155 feet per second) when it hits the target.
“Such a terminal speed cannot be intercepted by any anti-missile weapon system at thisstage. Even if it is dropped directly at this terrifying speed [hitting the target] without an
explosion it will cause a fatal strike to the enemy ship,” the article stated.
The debut of its export variant, the YJ-21E, at last year’s Airshow China “shows that thedomestic version of the Eagle Strike-21 ship-borne hypersonic missile is no longer thenavy’s most advanced ship-borne hypersonic missile, and more advanced ship-borne
hypersonic missiles are likely to have appeared,” it said.
The article was first published on the website of China Science Communication,
Guangming Online last year, but it was reposted by an official PLA account for the firsttime, a development experts described as a clear message for the US. 39

37 Josh Rogin, “China’s Military Expansion Will Test the Biden Administration,” Washington Post, December 3, 2020.
38 Rick Fisher, “China Deploys New Missiles Against the US Navy,” Epoch Times, April 29, 2022; Minnie Chan,“Chinese Navy Shows Off Hypersonic Anti-Ship Missiles In Public,” South China Morning Post, April 20, 2022; Tyler
Rogoway, “Mysterious New Missile Launched By China’s Giant Type 055 Destroyer,” The Drive, April 20. See also
Decker Eveleth, People’s Liberation Army Rocket Force Order of Battle 2023, James Martin Center ofNonproliferation Studies, Middlebury Institute of International Studies at Monterey, 2023, 65 pp.
39 Amber Wang, “Chinese Military Announces YJ-21 Missile Abilities in Social Media Post Read as Warning to US
Amid Tension in Taiwan Strait,” South China Morning Post, February 2, 2023. Material in brackets as in original. See
also Gabriel Honrada, “China’s Hypersonic Triad Pressing Down on US,” Asia Times, April 4, 2023.

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Anti-Ship Cruise Missiles (ASCMs)
China’s extensive inventory of anti-ship cruise missiles (ASCMs) (see Figure 4, Figure 5, andFigure 6 for examples of reported images) includes both Russian- and Chinese-made designs,
including some advanced and highly capable ones, such as the Chinese-made YJ-18.40
Figure 4. Reported Image of Anti-Ship Cruise Missile (ASCM)

Source: Detail of photograph accompanying Pierre Delrieu, “China Promotes Export of CM-302 Supersonic
ASCM,” Asian Military Review, July 3, 2017. (The article states “This is an article published in our December 2016
Issue.”) The article states “According to Chinese news media reports, the China Aerospace Science and Industry
Corporation (CASIC) CM-302 missile is being marketed for export as “the world’s best anti-ship missile.” Themissile was showcased at the Zhuhai air show in the southern People’s Republic of China (PRC) in earlyNovember [2016], and is advertised as [a] supersonic Anti-Ship Missile (AShM) [ASCM] which can also be usedin the land attack role. The report, published by the national newspaper China Daily, suggest[s] that the CM-302
is the export version of CASIC’s YJ-12 supersonic AShM, which is in service with the PRC’s armed forces.

Although China’s ASCMs do not always receive as much press attention as China’s ASBMs(perhaps because ASBMs are a more recent development), observers are nevertheless concerned
about them. As discussed later in this report, the relatively long ranges of certain Chinese ASCMs
have led to concerns among some observers that the U.S. Navy is not moving quickly enough toarm U.S. Navy surface ships with similarly ranged ASCMs.
Press reports in April 2019 and December 2021 stated that China might be developing a YJ-18
launcher that can be packaged inside a standard commercial shipping container, for the potential

40 2023 DOD CMSD, pp. 56-57. See also Dmitry Filipoff, “Fighting DMO, PT. 8: China’s Anti-Ship Firepower And

Mass Firing Schemes,” Center for International Maritime Security (CIMSEC), May 1, 2023 (the acronym DMO refers
to distributed maritime operations); Sam Goldsmith, Vampire Vampire Vampire, The PLA’s Anti-Ship Cruise Missile
Threat to Australian and Allied Naval Operations, Australian Strategic Policy Institute (ASPI), April 2022, 43 pp.;
Michael Peck, “Chinese Scientists Say They’re Working on an Anti-Ship Missile that Can Fly as High as an Airlinerand Dive as Deep as a Submarine,” Business Insider, October 20, 2022; “China Is Developing a New Supersonic AntiShip Missile,” Naval News, September 19, 2022.

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purpose of surreptitiously deploying YJ-18s on merchant ships (Figure 7),41 a capability that, if
implemented, could violate the law of naval warfare.42
Figure 5. Reported Image of Anti-Ship Cruise Missile (ASCM)

Source: Photograph accompanying “YJ-18 Eagle Strike CH-SS-NX-13,” GlobalSecurity.org, updated October 1,
2019. The article states, “A grand military parade was held in Beijing on 01 October 2019 to mark the People’s
Republic of China’s 70th founding anniversary.… One weapon featured was a new generation of anti-ship missiles
called YJ-18. China unveiled YJ-18/18A anti-ship cruise missiles in the National Day military parade in central
Beijing.”

41 See, for example, Bill Gertz, “China Building Long-Range Cruise Missile Launched From Ship Container,”

Washington Free Beacon, March 27, 2019; Alex Hollings, “China’s New Long-Range Cruise Missiles Are Built to be
Fired from Containers on Merchant Ships,” SOFREP (Special Operations Forces Report), April 4, 2019; “China Is
Building Long-Range Cruise Missiles Launched from Ship Containers,” Navy Recognition, April 8, 2019; Rajesh
Uppal, “Threat of Concealed Weapon and Missiles Systems on Standard International Shipping Container,”
International Defense, Security & Technology, October 20, 2021; Tariq Tahir, “China Feared to be Hiding Missiles in
Shipping Containers for Trojan Horse-Style Plan to Launch Attack Anywhere in World,” U.S. Sun, December 6, 2021.
See also Fan Wei and Cao Siqi, “China Debuts Container-Type Missile Launch System; Weapon Can ‘Effectively
Improve Defense Capabilities of Coastal Countries,’” Global Times, November 12, 2022.
42 Raul (Pete) Pedrozo, “China’s Container Missile Deployments Could Violate the Law of Naval Warfare,”
International Law Studies (U.S. Naval War College), vol. 97, 2021: 1160-1170.

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Figure 6. Reported Image of Anti-Ship Cruise Missile (ASCM)

Source: Dennis M. Gormley, Andrew S. Erickson, and Jingdong Yuan, A Low-Visibility Force Multiplier, Assessing
China’s Cruise Missile Ambitions, Published by National Defense University Press for the Center for the Study ofChinese Military Affairs, Institute for National Strategic Studies, Washington, DC, 2014. The image appears on an
unnumbered page following page 14. The caption to the photograph states, “YJ-83A/C-802A ASCM on display at2008 Zhuhai Airshow.” The photograph is credited to Associated Press/Wide World Photos.

Figure 7. Illustration of Reported Potential Containerized ASCM Launcher

Source: Illustration accompanying Tariq Tahir, “China Feared to be Hiding Missiles in Shipping Containers for
Trojan Horse-Style Plan to Launch Attack Anywhere in World,” U.S. Sun, December 6, 2021.

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Submarines
Overview
China has been steadily modernizing its submarine force, and most of its submarines are now
built to relatively modern Chinese and Russian designs.43 Qualitatively, China’s newest
submarines might not be as capable as Russia’s newest submarines,44 but compared to China’s
earlier submarines, which were built to antiquated designs, its newer submarines are much morecapable.45 An August 2023 Naval War College Report on China’s submarines states
After nearly 50 years since the first Type 091 SSN was commissioned, China is finally on
the verge of producing world-class nuclear-powered submarines. This report argues thatthe propulsion, quieting, sensors, and weapons capabilities of the Type 095 SSGN could
approach Russia’s Improved Akula I class SSN. The Type 095 will likely be equipped witha pump jet propulsor, a freefloating horizontal raft, a hybrid propulsion system, and 12-18
vertical launch system tubes able to accommodate anti-ship and land-attack cruise missiles.
China’s newest SSBN, the Type 096, will likewise see significant improvements over its
predecessor, with the potential to compare favorably to Russia’s Dolgorukiy class SSBN
in the areas of propulsion, sensors, and weapons, but more like the Improved Akula I in
terms of quieting. If this analysis is correct, the introduction of the Type 095 and Type 096
would have profound implications for U.S. undersea security. 46

A September 2023 Naval War College report on China’s submarine industrial base states
In recent years, China’s naval industries have made tremendous progress supporting themodernization of the People’s Liberation Army Navy (PLAN) submarine force, boththrough robust commitment to research and development (R&D) and the upgrading ofproduction infrastructure at the country’s three submarine shipyards…. Nevertheless,
China’s submarine industrial base continues to suffer from surprising weaknesses inpropulsion (from marine diesels to fuel cells) and submarine quieting. Closer ties with
Russia could provide opportunities for China to overcome these enduring technologicallimitations by exploiting political and economic levers to gain access to Russia’s remaining
undersea technology secrets.47
43 For a discussion of Russian military transfers to China, including transfers of submarine technology, see Paul

Schwartz, The Changing Nature and Implications of Russian Military Transfers to China, Center for Strategic andInternational Studies (CSIS), June 2021, 8 pp. See also Gabriel Honrada, “China-Russia in a Nuclear Sub Counter to
AUKUS,” Asia Times, October 23, 2023; Joseph Trevithick, “Top Russian Submarine Design Bureau Hit By Cyber
Attack With Chinese Characteristics,” The Drive, May 10, 2021.
44 Observers have sometimes characterized Russia’s submarines as being the most capable faced by the U.S. Navy. See,for example, Joe Gould and Aaron Mehta, “US Could Lose a Key Weapon for Tracking Chinese and Russian Subs,”
Defense News, May 1, 2019; Dave Majumdar, “Why the U.S. Navy Fears Russia’s Submarines,” National Interest,
October 12, 2018; John Schaus, Lauren Dickey, and Andrew Metrick, “Asia’s Looming Subsurface Challenge,” Waron the Rocks, August 11, 2016; Paul McLeary, “Chinese, Russian Subs Increasingly Worrying the Pentagon,” Foreign
Policy, February 24, 2016; Dave Majumdar, “U.S. Navy Impressed with New Russian Attack Boat,” USNI News,
October 28, 2014.
45 For an additional overview of China’s submarine force, see U.S. Naval War College, China Maritime Studies
Institute, Quick Look Report “Chinese Undersea Warfare: Development, Capabilities, Trends,” undated, 2 pp., whichsummarizes an academic conference on China’s undersea warfare capabilities that was held by the China Maritime
Studies Institute on April 11-13, 2023. See also Alastair Gale, “The Era of Total U.S. Submarine Dominance Over
China Is Ending, New Chinese Submarines and Sensors to Catch U.S. Subs Will Alter the Balance of Power,” WallStreet Journal, November 20, 2023.
46 Christopher P. Carlson and Howard Wang, A Brief Technical History of PLAN Nuclear Submarines Nuclear
Submarines, China Maritime Studies Institute (CMSI), U.S. Naval War College, August 2023, p. 1.
47 Sarah Kirchberger, China’s Submarine Industrial Base: State-Led Innovation with Chinese Characteristics State-Led(continued...)Congressional Research Service

18China Naval Modernization: Implications for U.S. Navy Capabilities

Types and Numbers
Most of China’s submarines are non-nuclear-powered attack submarines (SSs). China also
operates a small number of nuclear-powered attack submarines (SSNs) and a small number ofnuclear-powered ballistic missile submarines (SSBNs). The number of SSNs and SSBNs may
grow in coming years, but the force will likely continue to consist mostly of SSs. DOD states that“the PLAN has placed a high priority on modernizing its submarine force, but its force structure
continues to grow modestly as it works to mature its force, integrate new technologies, andexpand its shipyards. The PLAN currently operates six nuclear-powered ballistic missile
submarines (SSBN), six nuclear-powered attack submarines (SSN), and 48 diesel-powered/airindependent powered attack submarines (SS). The PLAN’s submarine force is expected to growto 65 units by 2025 and 80 units by 2035 despite the ongoing retirement of older hulls due to an
expansion of submarine construction capacity.”48
ONI states that “China’s submarine force continues to grow at a low rate, though with
substantially more-capable submarines replacing older units. Current expansion at submarine
production yards could allow higher future production numbers.” ONI projects that China’s
submarine force will grow from a total of 66 boats (4 SSBNs, 7 SSNs, and 55 SSs) in 2020 to 76
boats (8 SSBNs, 13 SSNs, and 55 SSs) in 2030.49 A November 27, 2022, press report states “Thedry-docks at China’s nuclear submarine facility at Huludao, Liaoning province, show increased
activity. New construction halls are primed. Another dry dock is ready to go. International
analysts point to this as evidence Beijing is gearing up for the mass production of a newgeneration of nuclear-powered attack and ballistic missile submarines.”50
China’s newest series-built SS design is the Yuan-class (Type 039) SS (Figure 8), its newest SSN
class is the Shang-class (Type 093) SSN (Figure 9), and its newest SSBN class is the Jin (Type094) class SSBN (Figure 10).

Innovation with Chinese Characteristics, China Maritime Studies Institute (CMSI), U.S. Naval War College,
September 2023, p. 1.
48 2023 DOD CMSD, p. 55.
49 Source: Unclassified ONI information paper prepared for Senate Armed Services Committee, subject “UPDATED
China: Naval Construction Trends vis-à-vis U.S. Navy Shipbuilding Plans, 2020-2030,” February 2020, p. 1. Provided
by Senate Armed Services Committee to CRS and CBO on March 4, 2020, and used in this CRS report with thecommittee’s permission. See also H. I. Sutton, “China Increases Production Of AIP Submarines With Massive New
Shipyard,” Naval News, February 16, 2021; H. I. Sutton, “First Image Of China’s New Nuclear Submarine Under
Construction,” Naval News, February 1, 2021.
50 Jamie Seidel, “Satellite Photos Reveal China’s Hypocrisy After Dig to Australia,” News.com.au, November 27,
2022. See also H. I. Sutton, “Further Expansion Of China's Nuclear Submarine Shipyard,” HISutton.com, January 5,
2023.

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Figure 8.Yuan (Type 039) Attack Submarine (SS)

Source: Photograph accompanying “Type 039A Yuan class,” SinoDefence.com, July 10, 2018, accessed August28, 2019.

Figure 9. Shang (Type 093) Attack Submarine (SSN)

Source: Photograph accompanying SinoDefence.com, “Type 093 Shang Class,” July 1, 2018, accessed August 27,
2019, at http://sinodefence.com/type093_shang-class/.

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Figure 10. Jin (Type 094) Ballistic Missile Submarine (SSBN)

Source: Cropped version of photograph accompanying Minnie Chan, “China Puts a Damper on Navy’s 70th
Anniversary Celebrations As It Tries to Allay Fears Over Rising Strength,” South China Morning Post, April 23,
2019. The article credits the photograph to Xinhua.

DOD states
The PRC continues to increase its inventory of conventional submarines capable of firing
advanced anti-ship cruise missiles (ASCM). Between the mid-1990s and mid-2000s, thePLAN purchased 12 Russian-built KILO-class SS units, eight of which are capable oflaunching ASCMs. China’s shipyards have delivered 13 SONG-class SS units (Type 039)
and 21 YUAN-class diesel-electric air-independent propulsion attack submarine (SSP)(Type 039A/B). The PRC is expected to produce a total of 25 or more YUAN-classsubmarines by 2025. In late 2021, the PLAN retired the first two KILO-class submarines(both non-ASCM capable) purchased from Russia in the 1990s.51

DOD states further that
Over the past 15 years, the PLAN has constructed 12 nuclear submarines—two SHANG
I-class SSNs (TYPE 093), four SHANG II-class SSNs (TYPE 093A), and six JIN-class
SSBNs (TYPE 094). Equipped with the CSS-N-14 (JL-2) submarine-launched ballistic
missile (SLBM) (3,900NM) or the CSS-N-20 (JL-3) SLBM (5,400NM), the PLAN’s six
operational JIN-class SSBNs represent the PRC’s first credible sea-based nuclear deterrent.
Each JIN-class SSBN can carry up to 12 missiles. In 2019, Beijing displayed these missiles
at the PRC’s 70th founding anniversary parade. The PRC’s next-generation TYPE 096
SSBN will reportedly be armed with follow-on longer range SLBM. The TYPE 096 will
likely begin construction in the near future. Based on the projected 30-plus-year service
life of the platforms, the PRC will operate its JIN and TYPE 096 SSBN fleets concurrently
in the 2030s. This would align with Xi’s 2018 directive for the SSBN force to achieve“stronger growth.”
The PRC launched two SHANG III (TYPE 093B)-class guided-missile nuclear attack
submarines (SSGN) between May 2022 and January 2023 and could have three hulls of
this class operational hulls by 2025. This new SHANG-class variant will enhance the51 2023 DOD CMSD, p. 55.

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PLAN’s anti-surface warfare capability and could provide a clandestine land-attack option
if equipped with land-attack cruise missiles (LACM). The PLAN is also improving its antisubmarine warfare capabilities through the development of its surface combatants andspecial mission aircraft, but it continues to lack a robust deep-water anti-submarine warfare(ASW) capability.52

In February 2022, the first of a new class of SS, smaller than the Yuan design, was reported, but it
is not clear whether this design is intended for China’s navy, for export to other countries, orboth.53
A May 16, 2022, press report states
A submarine seen in a satellite photo of a Chinese shipyard shows what could be a newclass or subtype of a nuclear-powered attack sub with a new stealthy propulsion system
and launch tubes for cruise missiles.
The satellite photo of the shipyard at Huludao in Liaoning province, northern China, which
was provided to Defense News by Planet Labs, was taken May 3 and shows a submarine
on a drydock.
The unidentified boat’s presence at the yard was first noted in an April 29 satellite image
by geospatial intelligence outfit AllSource Analysis. The organization said the submarine
is possibly a new class undergoing construction by China.54

An April 3, 2023, press report states the following in connection with the 2022 edition of DOD’s
annual report to Congress on military and security developments involving China:
China is for the first time keeping at least one nuclear-armed ballistic missile submarine
constantly at sea, according to a Pentagon report—adding pressure on the United Statesand its allies as they try to counter Beijing's growing military.
The assessment of China's military said China's fleet of six Jin-class ballistic missile
submarines were operating "near-continuous" patrols from Hainan Island into the South
China Sea. Equipped with a new, longer-range ballistic missile, they can hit the continental
United States, analysts say.
The note in the 174-page report drew little attention when it was released in late November[2022], but shows crucial improvements in Chinese capabilities, according to four regional
military attaches familiar with naval operations and five other security analysts. 55

Submarine Weapons
China’s submarines are armed with one or more of the following: ASCMs, wire-guided andwake-homing torpedoes, and mines. Wake-homing torpedoes can be very difficult for surface
ships to decoy. DOD states that each Jin-class SSBN is equipped to carry up to 12 JL-2 or JL-3

52 2023 DOD CMSD, pp. 55-56.
53 H. I. Sutton, “China’s New Submarine Is Unlike Anything In Western Navies,” Naval News, February 15, 2022;

Gabriel Honrada, “China Offers a Glimpse of New Type Mini-Submarine,” Asia Times, February 10, 2022.
54 Mike Yeo, “Satellite Photo Shows Possible New Chinese Nuclear Submarine Able to Launch Cruise Missiles,”Defense News, May 16, 2022. See also Gabriel Honrada, “Satellite Reveals China’s New Nuclear Attack Sub,” Asia
Times, May 16, 2022; John Feng, “China’s New Nuclear Submarine May Just Have Been Revealed,” Newsweek, May
10, 2022; Greg Torode, “Satellite Images Raise Prospect of New Class of Chinese Submarine,” Reuters, May 10, 2022.
55 Greg Torode and Eduardo Baptista, “Analysis: China’s Intensifying Nuclear-Armed Submarine Patrols Add
Complexity for U.S., Allies,” Reuters, April 3, 2023. See also Anders Hagstrom, “China’s New Role for Its Nuclear
Submarines Has the Pentagon's Attention,” Fox News, April 4, 2023.

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nuclear-armed submarine-launched ballistic missiles (SLBMs).56 The JL-3 is a new SLBM with arange longer than that of the JL-2. A May 2, 2021, press report stated that China’s latest Jin-class
SSBN is armed with JL-3s.57

Aircraft Carriers
Overview58
China’s first aircraft carrier, Liaoning (Type 001) (Figure 11), entered service in 2012. China’s
second aircraft carrier (and its first fully indigenously built carrier), Shandong (Type 002) (Figure12) entered service on December 17, 2019. Liaoning and Shandong launch fixed-wing aircraft
using a “ski ramp” at the ship’s bow.
Compared with Liaoning and Shandong, U.S. Navy aircraft carriers are larger (about 100,000
tons full load displacement), nuclear powered (giving them greater cruising endurance than aconventionally powered ship), able to embark and operate a larger number of aircraft (60 ormore), and launch fixed-wing aircraft using catapults, which can give those aircraft arange/payload capability greater than that of aircraft launched with a ski ramp.
China’s third carrier, Fujian (Type 003) (Figure 13, Figure 14, and Figure 15), was launched(i.e., put into the water for the final stages of its construction) in on June 17, 2022.59 ONI expects
the ship to enter service by 2024.60 The ship is expected to be conventionally powered, closer in
56 2023 DOD CMSD, pp. 55, 108. DOD estimates the range of the JL-2 at 3,900 nautical miles (2023 DOD CMSD, p.

55). Such a range could permit Jin-class SSBNs to attack targets in Alaska (except the Alaskan panhandle) fromprotected bastions close to China, targets in Hawaii (as well as targets in Alaska, except the Alaskan panhandle) fromlocations south of Japan, targets in the western half of the 48 contiguous states (as well as Hawaii and Alaska) from
mid-ocean locations west of Hawaii, or targets in all 50 states from mid-ocean locations east of Hawaii. DOD states
thatWith a range of approximately 3,900NM, a JIN equipped with the JL-2 would have to operate in
the mid-Pacific Ocean in order to threaten targets in the western half of the Continental UnitedStates (as well as Hawaii and Alaska) or east of Hawaii in order to threaten targets on the East
Coast of the United States. PRC sources claim the JL-3 has a range of over 5,400NM which would
allow a JIN armed with this missile to target portions of CONUS [continental United States] from
Chinese littoral waters.
(2023 DOD CMSD, p. 59. See also pp. viii, 104, 108.)
See also Kyle Mizokami, “China’s New Submarine-Launched Missile Can Reach the Western U.S., The JL-3 NuclearTipped Missile Can Only Hit About a Third of the United States, But It’s Enough,” Popular Mechanics, November 28,
2022.
57 Minnie Chan, “China’s New Nuclear Submarine Missiles Expand Range in US: Analysts,” South China Morning
Post, May 2, 2021. The article states that the JL-3 has a “range [of] over 10,000km (6,200 miles), a source close to the[Chinese] navy said.” Such a range could permit Jin-class SSBNs to attack larger portions of the United States from thelocations described in the previous footnote.
58 For an article providing a review of developments in China’s aircraft carrier and carrier-based aircraft programs, see
Rick Joe, “003 and More: An Update on China’s Aircraft Carriers,” Diplomat, September 29, 2020. Consistent with thediscussion in that article, this CRS report uses the following updated designations of China’s carriers: China’s second
aircraft carrier, previously referred to as the Type 001A, is now referred to as the Type 002; the next aircraft carrier
design after that, previously referred to as the Type 002, is now referred to as the Type 003, and the potential designthat could follow, previously referred to as the Type 003, is now referred to as the Type 004.
59 See, for example, Alexandra Stevenson, “China Launches Third Aircraft Carrier in Major Milestone for Xi Jinping,”
New York Times, June 17, 2022; Chun Han Wong, “China Launches Third Aircraft Carrier, Advancing Naval
Ambitions,” Wall Street Journal, June 17, 2022; Jack Lau, “China Launches Fujian, PLA Navy’s 3rd Aircraft Carrier,”
South China Morning Post, June 17, 2022.
60 Source: Unclassified ONI information paper prepared for Senate Armed Services Committee, subject “UPDATED(continued...)Congressional Research Service

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size and flight deck configuration to U.S. Navy aircraft carriers,61 and equipped with catapults
rather than a ski ramp for launching aircraft. China’s fourth carrier reportedly may have begun
construction as early as 2021.62
Observers have speculated that China may eventually field a force of four to six (or possibly morethan six) aircraft carriers. In late November 2019, it was reported that the Chinese government,
while deciding to proceed with the construction of the fourth carrier, had put on hold plans tobuild a fifth carrier, which was to be nuclear-powered, due to budgetary and technicalconsiderations.63 Observers expect that it will be some time before China masters carrier-based
aircraft operations on a substantial scale.64

Liaoning (Type 001)
Liaoning is a refurbished ex-Ukrainian aircraft carrier that China purchased from Ukraine in 1998
as an unfinished ship.65 It is conventionally powered, has an estimated full load displacement of
60,000 to 66,000 tons, and reportedly can accommodate an air wing of 30 or more fixed-wing
airplanes and helicopters, including 24 fighters. The Liaoning lacks aircraft catapults and instead
launches fixed-wing airplanes off the ship’s bow using an inclined ski ramp.
Some observers have referred to the Liaoning as China’s “starter” carrier. China has been using
Liaoning in part for pilot training. In May 2018, China reportedly announced that the aircraft
carrier group formed around Liaoning had reached initial operational capability (IOC),66 althoughthat term might not mean the same as it does when used by DOD in connection with U.S. weapon
systems.

Shandong (Type 002)
Shandong is a modified version of the Liaoning design that incorporates some design
improvements, including features that reportedly will permit it to embark and operate a larger air
China: Naval Construction Trends vis-à-vis U.S. Navy Shipbuilding Plans, 2020-2030,” February 2020, p. 4. Provided
by Senate Armed Services Committee to CRS and CBO on March 4, 2020, and used in this CRS report with thecommittee’s permission.
61 For a graphic providing an overhead comparison of the Type 003 design to the U.S. Navy’s Gerald R. Ford (CVN78) class aircraft carrier design, see Kathrin Hille, “China’s Newest Aircraft Carrier Prepares to Take to the Seas,”
Financial Times, September 12, 2023.
62 Minnie Chan, “Chinese Navy Set to Build Fourth Aircraft Carrier, but Plans for a More Advanced Ship Are Put on
Hold,” South China Morning Post, November 28, 2019.
63 Minnie Chan, “Chinese Navy Set to Build Fourth Aircraft Carrier, but Plans for a More Advanced Ship Are Put on
Hold,” South China Morning Post, November 28, 2019. See also Steven Stashwick, “Technical Problems, Slowing
Economy Cut China’s Carrier Ambitions,” Diplomat, December 4, 2019; Sebastien Roblin, “China Cancels Plans for
Two Nuclear-Powered Super Aircraft Carriers,” National Interest, December 7, 2019; Minnie Chan, “China’s Navy is
Being Forced to Rethink Its Spending Plans as Cost of Trade War Rises,” South China Morning Post, May 26, 2019.
64 For additional discussion, see Bradley Perrett, “Chinese Carrier Aircraft Fleet Is Poised For Rapid Growth,” Aviation
Week, June 20, 2023; Michael Dahm, “Lessons from the Changing Geometry of PLA Navy Carrier Ops,” U.S. Naval
Institute Proceedings, January 2023; Michael Peck, “China Is Scrambling to Find Pilots to Fly From Its Growing
Aircraft Carrier Fleet,” Business Insider, March 8, 2023.
65 Prior to the dissolution of the Soviet Union in December 1991, Ukraine was a part of the Soviet Union and the place
where the Soviet Union built its aircraft carriers.
66 Andrew Tate, “Liaoning Carrier Group Reaches Initial Operational Capability, IHS Jane’s Defence Weekly, June 4,
2018. See also Travis Fedschun, “China Says Carrier Group Reaches ‘Initial’ Combat Capability,” Fox News, May 31,
2018; “China’s First Aircraft Carrier Formation Capable of Systemic Combat Operation,” CGTV.com, May 31, 2018;
Global Times, “Chinese Aircraft Carrier Forming All-Weather Combat Capability with Successful Night Takeoff andLanding,” People’s Daily Online, May 29, 2018.

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wing of 40 aircraft that includes 36 fighters.67 Its displacement is estimated at 66,000 to 70,000
tons.
Figure 11. Liaoning (Type 001) Aircraft Carrier

Source: Cropped version of photograph accompanying China Power Team, “How Does China’s First Aircraft
Carrier Stack Up?” China Power (Center for Strategic and International Studies), December 9, 2015, updated
December 14, 2018, accessed August 28, 2019.

Figure 12. Shandong (Type 002) Aircraft Carrier

Source: Cropped version of photograph accompanying Daniel Brown, “China’s Newest Aircraft Carrier Is
Actually Very Outdated—But Its Next One Should Worry the US Navy A Lot,” Business Insider, July 18, 2018.
The article credits the photograph to Reuters.

67 See, for example, Liu Xuanzun, “China’s Second Aircraft Carrier Can Carry 50% More Fighter Jets Than Its First,”

Global Times, August 13, 2019; Liu Zhen, “China’s New Aircraft Carrier to Pack More Jet Power Than the Liaoning,”
South China Morning Post, August 15, 2019.

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Fujian (Type 003)
A May 4, 2023, press report states that Fujian has an estimated full load displacement of morethan 79,000 tons and is equipped, as observers had expected, with electromagnetic catapults
rather than a ski ramp, which will improve the range/payload capability of the fixed-wing aircraftthat it operates.68
Figure 13. Fujian (Type 003) Aircraft Carrier

Source: Cropped version of photograph accompanying Oliver Parken, “Our Best Look At China’s NearlyCompleted New Aircraft Carrier,” Warzone, January 2, 2024. The article describes the photograph as a screen
capture from CCTV.

Naval News, “3rd China Navy’s Aircraft Carrier Fujian Holds Propulsion Tests,” Navy Recognition, May 4, 2023.
The article states that the ship has “a normal displacement of 71,875 tons (70,740 long tons) and a full load
displacement of over 80,000 [metric] tons (79,000 long tons). She measures 300 meters (984 feet 3 inches) in length at
the waterline and 316 meters (1,036 feet 9 inches) overall, with a beam of 39.5 meters (129 feet 7 inches) at thewaterline and 76 meters (249 feet 4 inches) overall. Its propulsion system consists of steam turbines, 8 boilers, and 4
shafts, providing over 220,000 horsepower (164MW).... Equipped with an electromagnetic aircraft launch and arrest
system, it allows for more efficient and effective aircraft operations compared to its predecessors, the Liaoning and the
Shandong.” See also China Power Team, “How Advanced Is China’s Third Aircraft Carrier?” China Power, Center for
Strategic and International Studies (CSIS), updated May 18, 2023. By comparison, U.S. Navy aircraft carriers are
nuclear powered and have a full load displacement of about 97,000 tons (Nimitz class) or 100,000 tons (Gerald R. Fordclass), a length overall of 1,092 feet, a beam of 134 feet at the waterline, and a flight deck width of 252 feet (Nimitz
class) or 256 feet (Gerald R. Ford class). (U.S. Navy, “Aircraft Carriers—CVN,” updated November 12, 2021.)
68

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Figure 14. Fujian (Type 003) Aircraft Carrier

Source: Cropped version of photograph accompanying Minnie Chan, “China’s Fujian aircraft carrier doesn’t
have radar and weapon systems yet, photos show,” South China Morning Post, July 19, 2022.

Figure 15. Fujian (Type 003) Aircraft Carrier

Source: Cropped version of photograph accompanying “Power, Mooring Tests of Aircraft Carrier Fujian
Successfully Underway,” China Military Online, April 23, 2023. The caption to the photograph identifies it as ascreen shot from a China Central Television video report.

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China’s Fourth Carrier
A May 1, 2022, press report states, “Recent images of a stealth fighter jet at a naval airbase
suggest China has begun pilot training preparations for a fourth aircraft carrier, defence experts
say.”69 Some sources have stated that China’s fourth aircraft carrier would be built to the Type003 design. Press reports from October 10, 2022, and March 13, 2021, however, suggest that theship may be nuclear-powered rather than conventionally powered.70

Possible Type 076 Catapult-Equipped Amphibious Assault Ship
See also the discussion of the possible catapult-equipped Type 076 amphibious assault ship
(Figure 27 and Figure 28) in the section on China’s amphibious ships.

Commercial Heavy-Lift Ship Reportedly Used in Exercise as Helicopter Carrier
In August 2020, it was reported that China had used a commercial heavy-lift ship in a military
exercise as a platform for operating at least two PLA Army helicopters.71

Carrier-Based Aircraft72
China’s primary carrier-based fighter aircraft is the J-15 or Flying Shark (Figure 16 and Figure17), an aircraft derived from the Russian Su-33 Flanker aircraft design that can operate fromcarriers equipped with a ski ramp rather than catapults, but which some observers have critiqued
for its range/payload limitations in operations from carriers equipped with ski ramps rather thancatapults.73 December 2021 press reports stated that China has developed an upgraded, catapultcapable version of the J-15 that could have improved range/payload when operated from acatapult-equipped carrier.74
China may develop a carrier-capable variant of its FC-31/J-31 fifth-generation stealth fighter tocomplement or succeed the J-15 on catapult-equipped Chinese carriers.75 China reportedly is also
69 Minnie Chan, “Is China Ready for Aircraft Carrier No 4? Talk Swirls Over Stealth Fighter Jets at PLA Naval Base,”

South China Morning Post, May 1, 2022.
70 Gabriel Honrada, “China’s Next Aircraft Carrier Likely to Be Nuclear,” Asia Times, October 10, 2022; Minnie Chan,“Chinese Military: Fourth Aircraft Carrier Likely to Be Nuclear Powered, Sources Say,” South China Morning Post,
March 13, 2021. See also EurAsian Times Desk, “China Aims To Deploy First-Ever ‘Nuclear-Powered Aircraft
Carrier’ By 2025–Reports,” EurAsian Times, March 13, 2021.
71 David Axe, “Surprise! The Chinese Navy Just Transformed This Cargo Ship Into An Instant Helicopter Carrier,”
Forbes, August 22, 2020; Dave Makichuk, “PLA Army Tests Commercial Ships as Wartime Flight Decks,” Asia
Times, August 25, 2020; John Dotson, “Semi-Submersible Heavy Lift Vessels: A New “Maritime Relay Platform” for
PLA Cross-Strait Operations?” Jamestown Foundation, August 31, 2020.
72 For an overview of PLA naval aviation forces, see “PLA Navy Aerospace Forces” in PLA Aerospace Power: A
Primer on Trends in China’s Military Air, Space, and Missile Forces, 3rd Edition, Air University, China Aerospace
Studies Institute (CASI), undated, posted August 15, 2022, pp. 38-52. See also Akhil Kadidal, “Armed to the Teeth:
China’s New Aircraft Carrier Provides Unprecedented Strike Power,” Jane’s Defence Weekly, January 5, 2023.
73 For a discussion of the J-15, see, for example, Rick Joe, “China’s J-15 Carrierborne Fighter: Sizing up theCompetition,” Diplomat, May 20, 2021.
74 Andreas Rupprecht Mainz and Jon Grevatt, “Shenyang Produces First Catapult-Capable J-15,” Jane’s Defence
Weekly, December 16, 2021; David Axe, “China’s Next Carrier Fighter Is A Lighter, Meaner J-15,” Forbes, December
20, 2021.
75 See 2023 DOD CMSD, p. 62; Daniel Salisbury, PRC Navy Likely Testing Carrier-Based Stealth Fighters, China
Aerospace Studies Institute, January 2022, 3 pp.; Mike Yeo, “New Variants of Chinese Stealth Fighters Break Cover,”Defense News, October 29, 2021; Ryan Pickrell, “China Is Working on a Next-Generation Fighter Jet for Its Growing(continued...)Congressional Research Service

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developing a carrier-based airborne early warning (AEW) aircraft, called the KJ-600, that issimilar to the U.S. Navy’s carrier-based E-2 Hawkeye AEW aircraft,76 and stealth drone aircraft.77
Figure 16. J-15 Flying Shark Carrier-Capable Fighter

Source: Photograph accompanying “China Developing Elite New Variants of the J-15 Flying Shark to Deploy
from EMALS Equipped Future Carriers; Implications for the Balance of Power at Sea,” Military Watch Magazine,
August 17, 2018, accessed August 28, 2019.

Fleet of Aircraft Carriers and Could Unveil It This Year,” Business Insider, September 30, 2021; Zhao Lei, “NewAVIC Fighter Jet to Appear ‘Before Year’s End,’” China Daily, September 30, 2021; Reuben Johnson, “China’s J-35
Carrier Fighter Appears; Step To ‘Most Powerful Navy’?” Breaking Defense, July 1, 2021; Reuben Johnson, “COVID,
Hacking, and Spying Helped China Develop a New Stealth Fighter in Record Time,” Bulwark, June 23, 2021; Mike
Yeo, “Stealth Fighter Mock-up Appears at China’s Aircraft Carrier Testing Facility,” Defense News, June 9, 2021; H. I.
Sutton, “First Sighting Of New Stealth Fighter For Chinese Navy’s Aircraft Carriers,” Naval News, June 8, 2021; Rick
Joe, “The FC-31, China’s ‘Other’ Stealth Fighter, A Look at the Jet with Many Names—and Its Carrier-Based Future,”
Diplomat, February 18, 2021; Kris Osborn, “Is China Building Its Own F-35 Fighter Jets for its Aircraft Carriers?”
National Interest, July 3, 2020; Caleb Larson, “FC-31: China’s Next Carrier Jet is Stolen and Stealthy,” National
Interest, April 18, 2020; Sebastien Roblin, “China’s New Aircraft Carriers Are Getting Stealth Fighters,” National
Interest, October 26, 2019; Rick Joe, “Beyond China’s J-20 Stealth Fighter,” Diplomat, September 20, 2019; Minnie
Chan, “China’s Navy ‘Set to Pick J-20 Stealth Jets for Its Next Generation Carriers,’” South China Morning Post,
August 27, 2019. See also Thomas Newdick, “New Images Of China’s Elusive Catapult-Capable J-15T Carrier Fighter
Emerge,” The Drive, November 18, 2020.
76 2023 DOD CMSD, p. 58. See also, for example, Liu Zhen, “China’s Military Steps Up Development of Ship-Based
Warplanes to Keep Up with Aircraft Carrier Advances,” South China Morning Post, July 30, 2022; Liu Xuanzun,“China’s First Carrier-Based Early Warning Plane Continues Flight Tests: Report,” Global Times, February 22, 2021;
H. I. Sutton, “First Image Of China’s New Carrier-Based AEW Plane,” Forbes, August 29, 2020; Liu Xuanzun,“China’s First Carrier-Based, Fixed-Wing Early Warning Aircraft Makes Maiden Flight: Reports,” Global Times,
September 1, 2020; Peter Suciu, “The Xian KJ-600 Could Make China’s Aircraft Carriers Far More Powerful,”National Interest, September 5, 2020; Kris Osborn, “KJ-600: China’s New Surveillance Plane Will Make Their
Aircraft Carriers Even More Deadly,” National Interest, September 8, 2020.
77 Minnie Chan, “China to Deploy Sharp Sword Stealth Drone for New Type 001A Aircraft Carrier,” South China
Morning Post, September 17, 2019. See also Joseph Trevithick, “Chinese Aircraft Carrier Seen With A Fleet Of
Drones On Its Deck,” The Drive, June 2, 2022.

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Roles and Missions
Although aircraft carriers might have some value for China in Taiwan-related conflict scenarios,
they are not considered critical for Chinese operations in such scenarios, because Taiwan is within
range of land-based Chinese aircraft. Consequently, most observers believe that China isacquiring carriers primarily for their value in other kinds of operations, and to demonstrate
China’s status as a leading regional power and major world power. Chinese aircraft carriers could
be used for power-projection operations, particularly in scenarios that do not involve opposing
U.S. forces, and to impress or intimidate foreign observers.78
Figure 17. J-15 Flying Shark Carrier-Capable Fighter

Source: Photograph accompanying Mike Yeo, “Footage Shows Domestic Engine on China’s J-15 Fighter Jet,”
Defense News, November 28, 2022. The article credits the photograph to the Chinese Defense Ministry.

Chinese aircraft carriers could also be used for humanitarian assistance and disaster relief(HA/DR) operations, maritime security operations (such as antipiracy operations), andnoncombatant evacuation operations (NEOs). Politically, aircraft carriers could be particularly
valuable to China for projecting an image of China as a major world power, because aircraft
carriers are viewed by many as symbols of major world power status. In a combat situation
involving opposing U.S. naval and air forces, Chinese aircraft carriers would be highly vulnerable
78 For a discussion, see, for example, Bryan McGrath and Seth Cropsey, “The Real Reason China Wants Aircraft

Carriers, China’s Carrier Plans Target U.S. Alliances, Not Its Navy,” Real Clear Defense (www.realcleardefense.com),
April 10, 2014; Sebastien Roblin, “All of the Reasons Why the World Should Fear China’s Aircraft Carriers,” National
Interest, October 24, 2017. See also Ben Ho Wan Beng, “(Re)assessing the Near-Term Chinese Carrier Threat in a
Taiwan Scenario,” Breaking Defense, July 21, 2023.

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to attack by U.S. ships and aircraft, but conducting such attacks could divert U.S. ships andaircraft from performing other missions in a conflict situation with China.

Surface Combatants
Overview
China since the early 1990s has put into service numerous new classes of indigenously built
surface combatants, including a new cruiser (or large destroyer), several classes of destroyers andfrigates, a new class of corvettes (i.e., light frigates), and a new class of missile-armed patrol
craft.
These new classes of surface combatants demonstrate a significant modernization of PLA Navysurface combatant technology. DOD states that China’s navy “remains engaged in a robust
shipbuilding program for surface combatants. As of late 2022, the PLAN was building an aircraft
carrier, a new batch of guided-missile cruisers, guided-missile destroyers, and a new batch ofguided missile frigates, including a new 054 variant designated JIANGKAI III. These assets will
significantly upgrade the PLAN’s air defense, anti-ship, and anti-submarine capabilities and willbe critical as the PLAN expands its operations beyond the range of the PLA’s shore-based air
defense systems.”79 DIA states that “the era of past designs has given way to production ofmodern multimission destroyer, frigate, and corvette classes as China’s technologicaladvancement in naval design has begun to approach a level commensurate with, and in somecases exceeding, that of other modern navies.”80 China is also upgrading its older surface
combatants with new weapons and other equipment.81

Type 055 Cruiser/Large Destroyer
China is building a new class of cruiser (or large destroyer), called the Renhai-class or Type 055(Figure 18, Figure 19, and Figure 20), that reportedly displaces between 12,000 and 13,000
tons.82 A March 7, 2021, press report by a Chinese media outlet states that the ship displaces morethan 12,000 tons.83 By way of comparison, the U.S. Navy’s Ticonderoga (CG-47) class cruisers
and Arleigh Burke (DDG-51) class destroyers (aka the U.S. Navy’s Aegis cruisers and destroyers)
displace about 10,100 tons and 9,700 tons, respectively, while the U.S. Navy’s three Zumwalt(DDG-1000) class destroyers displace about 15,700 tons.

79 2023 DOD CMSD, p. 56.
80 2019 DIA CMP, p. 70.
81 See, for example, H. I. Sutton, “China Increases Potency Of Anti-Carrier Capabilities,” Forbes, May 1, 2020; Peter

Suciu, “Chinese Warships Are Now Armed with Supersonic Anti-Ship Missiles,” National Interest, May 10, 2020.
82 One article from a Chinse media outlet, for example, states, “This ship class has a displacement of more than 12,000
tons.” (Liu Xuanzun, “Chinese PLA’s Two Newly Commissioned Large Destroyers ‘Ready for Combat’ with Latest
Drills,” Global Times, August 22, 2022.) See also China Daily, “2nd Type 055 Destroyer Enters Service,” People’s
Daily Online, March 10, 2021.) For a discussion of the Type 055 design, see Sidharth Kaushal, “The Type 055: A
Glimpse into the PLAN’s Developmental Trajectory,” Royal United Services Institute (RUSI), October 19, 2020.
83 Liu Xuanzun, “China’s 2nd Type 055 Large Destroyer Enters Naval Service,” Global Times, March 7, 2021.

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Figure 18. Renhai (Type 055) Cruiser (or Large Destroyer)

Source: Cropped version of photograph accompanying “Type-055 Destroyer Sails at Sea,” People’s Daily Online,
December 18, 2023. The photograph is credited to eng.chinamil.com.cn/Photo by Wang Zezhou.

Figure 19. Renhai (Type 055) Cruiser (or Large Destroyer)

Source: Photograph accompanying Peter Suciu, “Chinese Navy to Launch 8th New Type 055 ‘Stealth’
Destroyer,” National Interest, August 22, 2020. The article credits the photograph to “Chinese Internet.”

ONI states that Type 055 ships are being built by two shipyards.84 The first Type 055 ship wasreportedly commissioned into service in January 2020,85 and the eighth was reportedly

84 Source: Unclassified ONI information paper prepared for Senate Armed Services Committee, subject “UPDATED

China: Naval Construction Trends vis-à-vis U.S. Navy Shipbuilding Plans, 2020-2030,” February 2020, p. 4. Provided
by Senate Armed Services Committee to CRS and CBO on March 4, 2020, and used in this CRS report with thecommittee’s permission.
85 Liu Xuanzun, “China’s 2nd Type 055 Large Destroyer Enters Naval Service,” Global Times, March 7, 2021. See also
China Daily, “2nd Type 055 Destroyer Enters Service,” People’s Daily Online, March 10, 2021; Xavier Vavasseur,“China’s 2nd Type 055 Destroyer ‘Lhasa’ 拉萨 Commissioned With PLAN,” Naval News, March 7, 2021; Xavier
Vavasseur, “China Commissions A Type 055 DDG, A Type 075 LHD And A Type 094 SSBN In A Single Day,”
Naval News, April 24, 2021.

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commissioned into service in March 2023.86 A January 2022 press report stated that in addition to
the first eight ships, at least two more were under construction.87
Figure 20. Renhai (Type 055) Cruiser (or Large Destroyer)
Unofficial illustration by Naval News

Source: Illustration accompanying H. I. Sutton, “Bigger Than A U.S. Navy AEGIS Cruiser: China Is Building More
Type-055s,” Naval News, January 12, 2022.

Type 052 Destroyer
China since the early 1990s has put into service multiple new classes of indigenously built
destroyers, the most recent of which is the Luyang III (Type 052D) class (Figure 21), whichdisplaces about 7,500 tons and is equipped with phased-array radars and vertical launch missile
systems that outwardly are broadly similar to those on U.S. Navy cruisers and destroyers. Press
reports in March 2021 stated that China is now commissioning an upgraded version of the Type
052D, informally called the Type 052DL, that incorporates an extended-length helicopter flightdeck and a new radar.88
Type 052D ships have been in serial production for some time; a March 12, 2023, press reportstates that the 27th and the 28th Type 052D ships had been launched (i.e., put into the water for the

86 “The Eighth Type 055 Destroyer Officially Commissioned to PLA Navy,” China Military Online, April 23, 2023.

See also Curtis Lee, “China Now Has 8 Type 055 Destroyers In Active Service,” Naval News, April 27, 2023.
87 H. I. Sutton, “Bigger Than A U.S. Navy AEGIS Cruiser: China Is Building More Type-055s,” Naval News, January
12, 2022. Regarding an improved air defense missile called the HQ-26 that Type 055 ships reportedly do not yet carry,see Thomas Corbett and Peter W. Singer, “China’s Big New Warship Is Missing an Important New Weapon,” Defense
One, January 23, 2023.
88 “Chinese Navy Commissions Upgraded Variation of the Type 052D Destroyer,” Navy Recognition, March 3, 2021;
Liu Xuanzun, “PLA’s 4th Improved Type 052D Destroyer Makes Maiden Appearance in Maritime Exercise,” Global
Times, March 30, 2021; Liu Zhen, “Chinese Navy Sails New Destroyers in South China Sea Amid Military
Shipbuilding Spree,” South China Morning Post, June 15, 2021.

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final phase of their construction), and that three additional Type 052D ships were underconstruction at the same shipyard.89
Figure 21. Luyang III (Type 052D) Destroyer

Source: Cropped version of photograph accompanying “Type 052D Luyang-III Class,” SinoDefence.com,
September 3, 2017, accessed August 28, 2019.

Type 054 Frigate
China since the early 1990s has also put into service multiple new classes of indigenously built
frigates, the most recent of which is the Jiangkai II (Type 054A) class (Figure 22), whichdisplaces about 4,000 tons. ONI stated in February 2020 that 30 Type 054As entered service
between 2008 and 2019, and that no additional Type 054As were then under construction.90 An
August 2021 press report from a Chinse media outlet, however, stated that “China is reportedly
building another batch of Type 054A frigates for the People’s Liberation Army Navy (PLA Navy)after it had launched two new ships of this class over the past few months.” The press report
noted that a report from the Jane’s organization had stated that the 32nd Type 054A ship had
recently been launched (i.e., put into the water for the final stages of its construction).91

89 Tayfun Ozberk, “China Launches Two More Type 052DL Destroyers In Dalian,” Naval News, March 12, 2023. See

also Liu Xuanzun, “China Launches Two New Type 052D Destroyers: Media,” Global Times, March 12, 2023; John
Hill, “China’s Navy Launches New Destroyers at Dalian Shipyard,” Naval Technology, March 14, 2023. An August21, 2022, press report (Xavier Vavasseur, “Five Type 052D Destroyers Under Construction In China,” Naval News,
August 21, 2022) referred to a photograph of five Type 05D ships under construction at a shipyard at Dalian, China.
The article stated, “Contacted by Naval News, two Chinese military observers confirmed that there are currently 25
destroyers of the class (13 Type 052D and 12 Type 052DL) currently in service with the PLAN. They will soon bejoined by the five under construction at Dalian and (at least) one more being built at the Jiangnan Changxing
Shipbuilding and Heavy Industry Corporation (the other Chinese shipyard building large surface combatants, locatedNorth East of Shanghai).”
90 Source: Unclassified ONI information paper prepared for Senate Armed Services Committee, subject “UPDATED
China: Naval Construction Trends vis-à-vis U.S. Navy Shipbuilding Plans, 2020-2030,” February 2020, p. 4. Provided
by Senate Armed Services Committee to CRS and CBO on March 4, 2020, and used in this CRS report with thecommittee’s permission. For a press article discussing the potential features of China’s next frigate design beyond theType 054A, see Rick Joe, “What Will the Chinese Navy’s Next Frigate Look Like?” Diplomat, May 15, 2020.
91 Liu Xuanzun, “Type 054A Frigate Good Choice to Expand PLA Naval Fleet and Boost Combat Preparedness:
Experts,” Global Times, August 12, 2021.

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Other press reports state that China’s Type 054 production has shifted to a larger and improved
version of the design called the Type 054B.92
Figure 22. Jiangkai II (Type 054A) Frigate

Source: Cropped version of photograph from Chinese Military Review, “Type 054A (Jiangkai II class) FFG-546
Yancheng Guided Missile Frigate in Mediterranean,” undated (but with a URL suggesting that it was posted in
February of 2014), accessed August 29, 2018.

Type 056 Corvette
China also built—in large numbers over a relatively short time period—a new type of corvette(i.e., a light frigate, or FFL) called the Jiangdao class or Type 056 (Figure 23), which reportedly
displaces 1,300 tons to 1,500 tons.93 Type 056 ships were built at a high annual rate in four
shipyards—the first was commissioned in 2013, and the 72nd and final ship of the type wasreportedly commissioned in early 2021, implying an average commisisoning rate of about eightships per year. DOD states that China’s navy “commissioned the 72nd JIANGDAO in February
2021, completing the production run. The PLAN subsequently transferred the early flight TYPE
056 variants, likely 22 ships total, to the China Coast Guard in 2021, probably due to the early
92 Liu Zhen, “China’s Navy Starts Open Water Trials for New Type 054B Frigate,” South China Morning Post, January

19, 2024; Minnie Chan, “China Has Launched Bigger, Faster Version of 054A Guided Missile Frigate, Online Photos
Suggest,” South China Morning Post, August 28, 2023; Alex Luck, “China’s Type 054B Next-Gen Frigate Under
Construction?” Naval News, January 30, 2023; Minnie Chan, “China Makes Progress on Advanced Warship Bigger
than Type 054A Frigate, According to New Satellite Images,” South China Morning Post, January 27, 2023; “China
Makes Progress on Advanced Warship Bigger than Type 054A Frigate, According to New Satellite Images,” Pakistan
Defence, January 27, 2023; Minnie Chan, “China Naval Steel Order Sparks Speculation over Bigger, Faster Frigate,”
South China Morning Post, May 7, 2022.
93 For an overview of the Type 056 corvette, see Eric Wertheim, “China’s Jiangdao-class Corvette: Mainstay of theFirst Island Chain,” U.S. Naval Institute Proceedings, September 2022.

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models’ lack of towed-array sonar. The remaining JIANGDAOs (056A) are equipped with a
towed-array sonar and are, thus, capable of contributing to ASW operations.”94 As shown in
Table 1, the rapid growth in the number of Type 056 corvettes since 2013 accounts for a
substantial share of the net increase in the total number of ships in China’s navy since 2013.
Figure 23. Jingdao (Type 056) Corvette

Source: Cropped version of image included at Chinese Military Review, “Random Images of Chinese Type 056
Jiangdao Class Light Corvette,” undated (but with a URL suggesting that it was posted in October 2013),
accessed August 29, 2018.

Amphibious Ships95
Type 071 Amphibious Ship
China’s new Yuzhao or Type 071 amphibious ships (Figure 24) have an estimated displacementof more than 19,855 tons,96 compared to about 25,900 tons for the U.S. Navy’s new San Antonio(LPD-17) class amphibious ships. A May 6, 2021, press report states that the eighth Type 071 ship“recently made its first publicly known maritime exercise appearance.”97

94 2023 DOD CMSD, p. 56.
95 For an article providing a brief overview of China’s amphibious shipbuilding programs, see Yasmin Tadjdeh, “China

Building Formidable Amphibious Fleet,” National Defense, June 25, 2021.
96 Unless otherwise indicated, displacement figures cited in this report are full load displacements. IHS Jane’s Fighting
Ships 2017-2018, p. 156, does not provide a full load displacement for the Type 071 class design. Instead, it provides a
standard displacement of 19,855 tons. Full load displacement is larger than standard displacement, so the full load
displacement of the Type 071 design is more than 19,855 tons.
97 Liu Xuanzun, “China’s Newly Commissioned Amphibious Landing Ship Joins Exercises, ‘to Form PowerfulPartnership with Amphibious Assault Ship,’” Global Times, May 6, 2021.

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Figure 24. Yuzhao (Type 071) Amphibious Ship

Source: Cropped version of photograph from Chinese Military Review, “Jinggang Shan (999) Type 071
YUZHAO Class Amphibious Transport Dock,” undated (but with a URL suggesting that it was posted in
February 2012), accessed August 29, 2018.

Type 075 Amphibious Assault ShipIn April 2021, China commissioned into service the first of a new type of amphibious assault
ship,98 called the Yushen or Type 075 (Figure 25 and Figure 26), that has an estimateddisplacement of about 35,000 tons, compared to 41,000 to 45,000 tons for U.S. Navy LHA/LHDtype amphibious assault ships.99 In March 2022, it was reported that the first Type 075 ship had
achieved initial operational capability (IOC),100 although that term might not mean the same as it
does when used by DOD in connection with U.S. weapon systems.
The second Type 075 ship reportedly was commissioned into service in late December 2021.101
The third was reportedly commissioned on or perhaps a few days prior to October 1, 2022.102 The
fourth was reportedly launched (i.e., put into the water for the final stages of its construction) in
December 2023.103

98 Amphibious assault ships, also referred to as helicopter carriers or (in British parlance) commando carriers, look likemedium-sized aircraft carriers. U.S. Navy amphibious assault ships are designated LHA or LHD.
99 See, for example, Mike Yeo, “China simultaneously commissions three warships on Navy anniversary,” Defense
News, April 26, 2021. For an in-depth discussion of the Type 075 design, see Conor M. Kennedy and Daniel Caldwell,
The Type 075 LHD: Development, Missions, and Capabilities, China Maritime Studies Institute (CMSI), U.S. Naval
War College, China Maritime Report No. 23, October 2022, 45 pp.
100 Liu Xuanzun, “China’s 1st Amphibious Assault Ship Reaches Initial Operating Capability, To Make World Tour,”Global Times, March 2, 2022; Ridzwan Rahmat, “China’s First Type 075 Amphibious Assault Ship Achieves Initial
Operating Capability,” Jane’s Defence Weekly, March 4, 2022.
101 Xavier Vavasseur, “China’s 2nd Type 075 LHD Guangxi 广西 Commissioned With PLAN,” Naval News, December

30, 2021.
102 Xavier Vavasseur, “China’s 3rd Type 075 LHD Anhui 安徽 Commissioned With PLAN,” Naval News, October 1,

2022.
103 Xavier Vavasseur, “China Launches 4th Type 075 LHD For The PLAN,” Naval News, December 14, 2023. See also
“Construction of China Navy Fourth Type 075 LHD Progressing Well,” Navy Recognition, November 10, 2023.

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Figure 25. Type 075 Amphibious Assault Ship

Source: Photograph accompanying David Axe, “China Is Finishing Its First Large Helicopter Assault Ship,”National Interest, October 29, 2019.

In July 2020, it was reported that China might be planning to build the first of a new class ofamphibious assault ships, called the Type 076 by observers (Figure 27 and Figure 28), thatwould be equipped with electromagnetic catapults, which would enhance its ability to support
operations by fixed-wing aircraft and make it somewhat more like an aircraft carrier.104 A
September 2023 press report stated that China had completed construction of a dry dock thatsome observers believe may be used to build Type 076 ships.105

Amphibious Ship Roles and Missions
Although larger amphibious ships such as the Type 071 and Type 075 would be of value for
conducting amphibious landings in Taiwan-related conflict scenarios, some observers believe that
China is building such ships as much for their value in conducting other operations, such as
operations for asserting and defending China’s claims in the South and East China Seas,humanitarian assistance/disaster relief (HA/DR) operations, maritime security operations (such as
antipiracy operations), and noncombatant evacuation operations (NEOs). Politically, amphibious

104 H. I. Sutton, “Stealth UAVs Could Give China’s Type-076 Assault Carrier More Firepower,” Forbes, July 23, 2020;

Kathrin Hille, “China Plans Hybrid Assault Vessel to Strengthen Overseas Power,” Financial Times, July 24, 2020;
Minnie Chan, “Chinese Shipbuilder Planning Advanced Amphibious Assault Ship,” South China Morning Post, July
27 (updated July 28), 2020; Rick Joe, “Whispers of 076, China’s Drone Carrying Assault Carrier,” Diplomat, August21, 2020.
105 Minnie Chan, “Chinese Military: Celebrating Workers’ Social Media Photo Shows Beijing Is Likely Building New
Type 076 Giant Warship,” South China Morning Post, September 12, 2023.

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ships can also be used for naval diplomacy (i.e., port calls and engagement activities) and for
impressing or intimidating foreign observers.106
Figure 26. Type 075 Amphibious Assault Ship

Source: Photograph accompanying Liu Zhen, “Chinese Military’s First Type 075 Amphibious Assault Ship Begins
Sea Trial,” South China Morning Post, August 7, 2020. The article credits the photograph to Weibo. Possible Type
076 Catapult-Equipped Amphibious Assault Ship.

106 See, for example, Grant Newsham, “China’s Amphibious Force Emerges,” Asia Times, November 5, 2019.

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Figure 27. Notional Rendering of Possible Type 076 Amphibious Assault Ship

Source: Illustration accompanying H. I. Sutton, “Stealth UAVs Could Give China’s Type-076 Assault Carrier
More Firepower,” Forbes, July 23, 2020.

Figure 28. Notional Rendering of Possible Type 076 Amphibious Assault Ship

Source: Illustration accompanying Minnie Chan, “Chinese Shipbuilder Planning Advanced Amphibious Assault
Ship,” South China Morning Post, July 27 (updated July 28), 2020.

Potential Use of Commercial Ships
In assessing China’s capacity for conducting an amphibious invasion of Taiwan, some observers
have focused on China’s potential for using civilian ferries and other commercial ships toaugment the transport and landing capacity of China’s amphibious ships. Reported Chinese
exercises indicate that China is exploring and testing this concept.107
107 See, for example, Matthew P. Funaiole, Brian Hart, Jaehyun Han, and Jennifer Jun, “China Accelerates

Construction of ‘Ro-Ro’ Vessels, with Potential Military Implications,” China Power (Center for Strategic andInternational Studies [CSIS]), October 11, 2023; Jack Lau, “China’s Navy Includes Civilian Ferry in Military Transport
Drill,” South China Morning Post, July 26, 2023; John Konrad, “Is COSCO China’s Secret Invasion Fleet?” gCaptain,(continued...)Congressional Research Service

40China Naval Modernization: Implications for U.S. Navy Capabilities

Operations Away from Home Waters
Ship Operations
Although China’s navy operates primarily in China’s home waters, Chinese navy ships are
conducting increasing numbers of operations away from China’s home waters, including thebroader waters of the Western Pacific, the Indian Ocean, and the waters surrounding Europe,
including the Mediterranean Sea and the Baltic Sea. A November 23, 2019, DOD news report
quoted Admiral Philip Davidson, the commander of the U.S. Indo-Pacific Command, as statingthat China’s navy had conducted more global naval deployments in the past 30 months than it hadin the previous 30 years.108
DOD states that “the PLAN’s ability to perform missions beyond the FIC [first island chain] ismodest but growing as it gains more experience operating in distant waters and acquires larger
and more advanced platforms. The PRC’s experience in extended range operations primarily
comes from extended task group deployments and its ongoing counterpiracy mission in the Gulfof Aden.”109 China has been conducting antipiracy operations in the Gulf of Aden since December
2008 via a succession of more than 40 rotationally deployed naval escort task forces.110 China’s
long-distance naval deployments have also been for making diplomatic port calls and conducting
training exercises.

April 1, 2023; Conor Kennedy, “RO-RO Ferries and the Expansion of the PLA’S Landing Ship Fleet,” Center forInternational Maritime Security (CIMSEC), March 27, 2023; J. Michael Dahm, More Chinese Ferry Tales: China's
Use of Civilian Shipping in Military Activities, 2021-2022 Use of Civilian Shipping in Military Activities, 2021-2022,
China Maritime Studies Institute (CMSI), U.S. Naval War College, China Maritime Report No. 25, January 2023, 71
pp.; Parth Satam, “Civilian Ship Armed With Tanks—Scary Images Reveal China’s ‘Notorious Plan’ To Invade &Annex Taiwan,” Eurasian Times, November 8, 2022; Thomas Shugart, “Mind the Gap, Part 2: The Cross-Strait
Potential of China’s Civilian Shipping Has Grown,” War on the Rocks, October 12, 2022; H I Sutton and Sam
LaGrone, “Chinese Launch Assault Craft from Civilian Car Ferries in Mass Amphibious Invasion Drill, Satellite
Photos Show,” USNI News, September 28, 2022; Bethany Dawson, “China Is Using a Stealth Fleet of Fishing Boatsand Ferries to Boost Its Naval Power, Say Military Experts,” Business Insider, September 24, 2022; David Rising,“China Using Civilian Ships to Enhance Navy Capability, Reach,” Associated Press, September 24, 2022; Thomas
Shugart, “Mind The Gap: How China’s Civilian Shipping Could Enable a Taiwan Invasion,” War on the Rocks, August
16, 2022; J. Michael Dahm, Chinese Ferry Tales, The PLA’s Use of Civilian Shipping in Support of Over-the-Shore
Logistics, China Maritime Studies Institute (CMSI), U.S. Naval War College, China Maritime Report No. 16,
November 2021, 56 pp.; Brian Waidelich, Patrick deGategno, Timothy Ditter, and Thomas Bickford, Chinese Views ofCivilian Ship Mobilization, DSI-2021-U-030614-Final, CNA, November 10, 2021, 2 pp. (with a note indicating that it
is a summary based on the full-length CNA report, Chinese Views of Civilian Ships’ Support to PLA Maritime
Operations, DRM2021-C-029795-Final); Kris Osborn, “Could China’s Civilian Ferries Play a Role in a Taiwan
Invasion?” National Interest, October 21, 2021; Keoni Everington, “Video Shows Ship Packed with Chinese Tanks for‘Future Battlefield’ in Taiwan,” Taiwan News, October 18, 2021; Michael Dahm and Conor M. Kennedy, “Civilian
Shipping: Ferrying the People’s Liberation Army Ashore,” Center for International Maritime Security (CIMSEC),
September 9, 2021; Chris Horton, “China Mobilizes Civilian Ferries for Taiwan Invasion Drills,” Nikkei Asia, August25, 2021; Andrew Tate, “Chinese Military Using Commercial Ro-Ro Shipping to Enhance Its Amphibious
Capabilities,” Jane’s, August 23, 2021; Thomas Shugart, “Mind the Gap: How China’s Civilian Shipping Could Enablea Taiwan Invasion,” War on the Rocks, August 16, 2021; Mike Yeo, “China Reportedly Converted Civilian Ferries forAmphibious Assault Operations,” Defense News, August 4, 2021; David Hambling, “China Converts Car Ferries For
Amphibious Assault,” Forbes, July 27, 2021; Courtney Mabeus, “Chinese Navy Using Commercial Car Ferries to
Launch Amphibious Landing Craft,” USNI News, July 26, 2021; Conor Kennedy, “Ramping the Strait: Quick and Dirty
Solutions to Boost Amphibious Lift,” China Brief, July 16, 2021.
108 David Vergun, “Freedom of Navigation in South China Sea Critical to Prosperity, Says Indo-Pacific Commander,”DOD News, November 23, 2019.
109 2023 DOD CMSD, p. 54. See also p. 91.
110 See, for example, Chen Xing and Wang Yuanfang, “44th, 45th Chinese naval escort taskforces rotate in Gulf ofAden,” China Military Online, October 7, 2023.

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Current or Potential Bases Outside China
China’s distant naval operations are supported in part by China’s military base in Djibouti,
where the Gulf of Aden meets the Red Sea. China officially opened the base in August 2017 as its
first overseas military base.111 Some observers expect that China in coming years will seek toestablish a global network of locations in various parts of the world for refueling and resupplying
Chinese navy ships conducting distant naval operations.112
Observers are now following developments at Cambodia’s Ream naval base, which fronts onto
the Gulf of Thailand. DOD states: “In June 2022, a PRC official confirmed that the PLA would
have access to parts of Cambodia’s Ream Naval Base.”113 The first Chinese navy ships reportedly
docked at the base in December 2023.114
A security agreement between China and the Solomon Islands that was announced by the
Solomon Islands in April 2022 has led some observers to express concern that the agreement
could eventually lead to, among other things, the establishment of a Chinese naval base in that

111 For discussions of Djibouti and other potential Chinese military bases outside China, see 2023 DOD CMSD, pp. xi,

154-156; Kathrin Hille, Demetri Sevastopulo, and John Paul Rathbone, “China Denies Building Naval Bases But Fearof Its Military Reach Grows,” Financial Times, June 19, 2022. Regarding China’s military base in Djibouti, see H. I.
Sutton, “Satellite Images Show That Chinese Navy Is Expanding Overseas Base,” Forbes, May 10, 2020; Peter Suciu,“China’s Naval Base in Africa Is Getting Bigger. Is a Network of Bases Next?” National Interest, May 11, 2020; staff
writer, “Chinese Navy Expanding Base in Africa, Satellite Images Confirm,” War Is Boring, May 11, 2020; Jean-Pierre
Cabestan, “China’s Djibouti Naval Base Increasing Its Power,” East Asia Forum, May 16, 2020; Dave Makichuk,“China Builds a Mega-Fortress on the Horn of Africa,” Asia Times, May 18, 2020; Michael Evans, “Beijing’s African
Port Ready for Aircraft Carriers,” Times (UK), May 19, 2020.
112 See, for example, Maxwell Simon and Jayaram Ravi, Navigating China’s Opportunistic Approach to Overseas
Naval Base Acquisition, Belfer Center (Harvard Kennedy School), November 2023, 69 pp.; Cristina L. Garafola,
Stephen Watts, and Kristin J. Leuschner, China’s Global Basing Ambitions, Defense Implications for the United States,
RAND, report RRA1496-1, 2022, 31 pp.; Brad Lendon and Simone McCarthy, “Blue-Water Ambitions: Is China
Looking Beyond Its Neighborhood Now It Has the World’s Largest Navy?” CNN, September 2, 2023; John Grady,“Beijing Investing in Network of Global Chinese Naval Bases, Researchers Find,” USNI News, August 16, 2023;
Rathindra Kuruwita, “AidData Report Warns of a Chinese Naval Base in Sri Lanka’s Hambantota Port,” Diplomat,
August 15, 2023; Guy Taylor, “Port Call: China’s Navy Scouting Range of Sites for Future Overseas Bases,”
Washington Times, August 15, 2023; Philip Heijmans, “China’s Top Option for Next Naval Base Is Sri Lanka, Report
Says,” Bloomberg, July 28, 2023; Alexander Wooley and Sheng Zhang, “Beijing Is Going Places—and Building Naval
Bases,” Foreign Policy, July 27, 2023; Alex Wooley, Sheng Zhang, Rory Fedorochko, and Sarina Patterson, Harboring
Global Ambitions: China's Ports Footprint and Implications for Future Overseas Naval Bases, AidData (William &Mary), July 2023 (posted online July 25, 2023), 44 pp.
113 2023 DOD CMSD, p. 154.
114 David Brunnstrom, “US Monitoring Reports of Chinese Warships at Cambodian Base,” Reuters, December 6, 2023;
Nectar Gan, “The First Chinese Warships Have Docked at a Newly Expanded Cambodian Naval Base. Should the US
Be Worried?” CNN, December 6, 2023; Philip Heijmans, “US Raises Concern Over China Warships’ Rare Stop in
Cambodia,” Bloomberg, December 6 (updated December 7), 2023; Jack Lau, “Chinese Warships Visit Controversial
Cambodian Naval Base for Joint Exercise,” South China Morning Post, December 6, 2023; RFA Staff, “Chinese
Warships Dock at Cambodia’s Ream Naval Base for ‘Training,’” Radio Free Asia (RFA), December 6, 2023. See also
H.I. Sutton, “Chinese Navy’s Suspected New Overseas Base In Cambodia Now Even Larger,” Naval News, November
13, 2023.
For press reports in July 2022 about construction of the base nearing completion, see James Brooke, “China
Completing Major Naval Base in Cambodia, Capable of Docking Its New Generation of Carriers,” New York Sun, July28, 2023; Ashish Dangwal, “China’s 1st Naval Facility In Indo-Pacific Almost Ready; Capable Of Hosting Aircraft
Carrier–Reports,” Eurasian Times, July 26, 2023; Sun Narin and Han Noy, “Cambodian Ream Naval Base Modernizedby China Nears Completion: Defense Ministry,” VOA, July 26, 2023; Demetri Sevastopulo, “Chinese Base in
Cambodia Nears Completion in Challenge to US Naval Power,” Financial Times, July 24, 2023; Blacksky, “Blacksky
Releases Imagery of Near-Complete Chinese Military Naval Station in Cambodia,” press release dated July 24, 2023.

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country.115 The Prime Minister of the Solomon Islands ruled out that possibility, stating that it
would “put our country and our people as targets for potential military strikes.”116
In December 2021, it was reported that China may be seeking to establish a military (including
naval) base at a port in Equatorial Guinea, a country located on the Atlantic coast of Africa—alocation that could enhance China’s ability to conduct naval operations in the Atlantic.117
A January 3, 2023, press report states “China is once again pressuring Argentina to build a naval
base in Ushuaia, Tierra del Fuego province, which would mean opening the door to Antarctica
for Beijing.”118
A November 7, 2023, press report states, “President Joe Biden has been briefed on what his
advisers see as a Chinese plan to build a military facility in Oman, people familiar with thematter said, amid a broader effort by Beijing to deepen defense and diplomatic ties with the
Middle East.”119

U.S. Navy Response
Overview
The U.S. Navy has taken a number of actions to counter China’s naval modernization effort.
Among other things, the U.S. Navy has•

shifted a greater percentage of its fleet to the Pacific;120

115 See, for example, Camilla Pohle-Anderson, “China’s Search for a Permanent Military Presence in the PacificIslands,” U.S. Institute of Peace, July 21, 2022; Damien Cave, “Why a Chinese Security Deal in the Pacific Could
Ripple Through the World, In Potentially Opening the Door to a Chinese Military Base, the Solomon Islands Threatens
the Balance of Power in a Vital Shipping Region,” New York Times, April 20, 2022; Ralph Jennings, “Analysts:
Chinese Navy to Grow Through 2050, With Emphasis on Hardware,” Voice of America, April 5, 2022.
116 See, for example, “Solomons Leader: Chinese Base Would Make His People Targets,” Associated Press, July 14,2022; John Feng, “China Military Base in Solomon Islands Ruled Out in Blow to Naval Ambitions,” Newsweek, July
14, 2022; Lice Movono and Kate Lyons, “Solomon Islands PM Rules Out China Military Base and Says Australia is‘Security Partner of Choice,’” Guardian, July 13, 2022.
117 See, for example, Michael M. Phillips, “China Seeks First Military Base on Africa’s Atlantic Coast, U.S.
Intelligence Finds, Alarmed Officials at the White House and Pentagon Urge Equatorial Guinea to Rebuff Beijing’s
Overtures,” Wall Street Journal, December 5, 2021; Bonny Lin, Jude Blanchette, Joseph S. Bermudez Jr., and Mvemba
Phezo Dizolele, “Is China Building a New String of Pearls in the Atlantic Ocean?” Center for Strategic andInternational Studies (CSIS), December 20, 2021; Michael M. Phillips, “U.S. Aims to Thwart China’s Plan for Atlantic
Base in Africa,” Wall Street Journal, February 11, 2022; Cobus van Staden, “Fears of a Chinese Naval Base in West
Africa Are Overblown,” Foreign Policy, March 3, 2022; Paul Nantulya, “Considerations for a Prospective New
Chinese Naval Base in Africa,” Africa Center for Strategic Studies, May 12, 2022.
118 Guillermo Saavedra, “China Pressures Argentina to Build Naval Base,” Diálogo Americas, January 3, 2023.
119 Michelle Jamrisko and Jennifer Jacobs, “Biden Briefed on Chinese Effort to Put Military Base in Oman,”
Bloomberg, November 7, 2023.
120 Efforts in this regard began at least as far back as 2006: The final report on the 2006 Quadrennial Defense Review(QDR) directed the Navy “to adjust its force posture and basing to provide at least six operationally available andsustainable carriers and 60% of its submarines in the Pacific to support engagement, presence and deterrence.” (U.S.
Department of Defense, Quadrennial Defense Review Report. Washington, 2006. February 6, 2006, p. 47.) Subsequent
to this directive, the Navy announced an intention to increase to 60% (from a starting point of about 55%) thepercentage of the fleet as a whole that is assigned to the Pacific. An October 13, 2021, press report stated, “US Naval
Chief of Operations, Admiral Michael Gilday, on Tuesday kicked off his 5-day visit to India by meeting his Indian
counterpart Admiral Karambir Singh, Chief of Defence Staff General Bipin Rawat and other senior government
officials.... Asked about what the US intends to do to counter China’s aggressive modernisation of its Navy, Gilday
said they will not try to outspend it, but partners like India in the region will be the key to ensure that the Indian Ocean(continued...)Congressional Research Service

43China Naval Modernization: Implications for U.S. Navy Capabilities

•
•

•
•

•
•

assigned its most-capable new ships and aircraft to the Pacific;
maintained or increased general presence operations, training and developmental
exercises, and engagement and cooperation with allied and other navies in the
Indo-Pacific;
increased the planned future size of the Navy;
initiated, increased, or accelerated numerous programs for developing new
military technologies and acquiring new ships, aircraft, unmanned vehicles, andweapons;
developed new operational concepts (i.e., new ways to employ Navy and Marine
Corps forces) for countering Chinese maritime A2/AD forces; andsignaled that the Navy in coming years will shift to a more distributed fleet
architecture that will feature a substantially greater use of unmanned vehicles.

Some of the above items are discussed in more detail below.

Planned Size of Navy
As discussed in greater detail in another CRS report,121 the Navy’s existing force-level goal,
which the Navy released on December 15, 2016, calls for achieving and maintaining a fleet of
355 ships—an increase of 47 ships over the previous 308-ship force-level goal of March 2015. As
also discussed in the other CRS report, the Navy and the Office of the Secretary of Defense(OSD) have been working since 2019 to develop a successor for the 355-ship force-level goal but
have not been able to come to closure on a successor goal. The Navy’s FY2023 30-year (FY2023FY2052) shipbuilding plan, released on April 20, 2022, presented the results of three studies on
possibilities for the Navy’s successor force-level goal. These studies call for a future Navy with
321 to 404 manned ships and 45 to 204 large surface and underwater unmanned vehicles (UVs).

Highly Capable Ships, Aircraft, Weapons, and Other Systems
Many of the Navy’s programs for acquiring highly capable ships, aircraft, weapons, and othersystems can be viewed as intended, at least in part, at improving the U.S. Navy’s ability tocounter Chinese maritime A2/AD capabilities. Examples include the following:•••

Virginia-class nuclear-powered attack submarines (SSNs);122
the Navy’s envisaged next-generation SSN, called the SSN(X);123
Gerald R. Ford (CVN-78) class nuclear-powered aircraft carriers (CVNs);124

Region (IOR) is stable. Given the importance of the region, 60 per cent of US Navy’s forces are now in the IndoPacific, he said.” (Krishn Kaushik, “60% Navy Forces in Indo-Pacific Region Now: US Navy Chief,” Indian Express,
October 13, 2021.)
121 CRS Report RL32665, Navy Force Structure and Shipbuilding Plans: Background and Issues for Congress, by
Ronald O'Rourke.
122 For more on the Virginia-class program, see CRS Report RL32418, Navy Virginia-Class Submarine Program and
AUKUS Submarine Proposal: Background and Issues for Congress, by Ronald O'Rourke.
123 For more on the SSN(X) program, see CRS In Focus IF11826, Navy Next-Generation Attack Submarine (SSN[X])Program: Background and Issues for Congress, by Ronald O'Rourke.
124 For more on the CVN-78 program, see CRS Report RS20643, Navy Ford (CVN-78) Class Aircraft Carrier
Program: Background and Issues for Congress, by Ronald O'Rourke.

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•
•
•
•
•

•

•
•
•

Navy and Marine Corps versions of the F-35 Joint Strike Fighter (JSF);125
Arleigh Burke (DDG-51) class guided missile destroyers (DDGs);126
the Navy’s envisaged next-generation DDG, called the DDG(X);127
Constellation (FFG-62) class frigates;128
new anti-ship weapons, such as the Long-Range Anti-Ship Missile (LRASM),
also known as the Offensive Anti-Surface Warfare (OASuW) Increment 1
weapon;129
hypersonic weapons, including the ship-launched Conventional Prompt Strike(CPS) weapon and the Hypersonic Air-Launched OASuW (HALO) weapon, also
known as OASuW Increment 2;130
shipboard high-energy lasers;131
new electronic warfare systems; andundersea surveillance systems for detecting and tracking adversary
submarines.132

Fleet Architecture and Operational Concepts
Remarks from Navy and DOD officials since 2019 have indicated that the successor to the 355ship force-level goal will introduce a change in fleet architecture, meaning basic the types ofships that make up the Navy and how these ships are used in combination with one another toperform Navy missions. This new fleet architecture is to be more distributed than the fleet
architecture reflected in the 355-ship goal or previous Navy force-level goals. In particular, the
new fleet architecture is expected to feature a substantially greater use of unmanned vehicles(UVs).133 Navy and DOD leaders believe that shifting to a more distributed fleet architecture is

125 For more on the JSF program, see CRS Report RL30563, F-35 Joint Strike Fighter (JSF) Program, by John R.

Hoehn.
126 For more on the DDG-51 program, see CRS Report RL32109, Navy DDG-51 and DDG-1000 Destroyer Programs:
Background and Issues for Congress, by Ronald O'Rourke.
127 For more on the DDG(X) program, see CRS In Focus IF11679, Navy DDG(X) Next-Generation Destroyer
Program: Background and Issues for Congress, by Ronald O'Rourke.
128 For more on the FFG-62 program, see CRS Report R44972, Navy Constellation (FFG-62) Class Frigate Program:
Background and Issues for Congress, by Ronald O'Rourke.
129 For more on the LRASM program, see CRS In Focus IF11353, Defense Primer: U.S. Precision-Guided Munitions,coordinated by Nathan J. Lucas.
130
For more on the CPS program, see CRS Report R45811, Hypersonic Weapons: Background and Issues forCongress, by Kelley M. Sayler
131 For more on Navy laser programs, see CRS Report R44175, Navy Shipboard Lasers: Background and Issues forCongress, by Ronald O'Rourke.
132 See, for example, Joe Brock, “U.S. Revives Cold War Submarine Spy Program to Counter China,” Reuters,
September 21, 2023; Anders Hagstrom, “US Pours Billions into Cold War Submarine Program as China Bolsters
Navy,” Fox News, September 21, 2023.
133 See, for example, Patrick Tucker, “The Navy Wants Drones to Counter China’s Gray-Zone Moves,” Defense One,
April 4, 2023; Parth Satam, “US Developing ‘Swarms-Of-Swarms’ That Can Attack From Land, Air & Sea & Overturn
China’s Numerical Edge,” Eurasian Times, February 18, 2023. See also Bryan Clark, “We Don't Have the Missiles toStop China. Time For Drone Swarms,” Defense One, February 1, 2023.

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operationally necessary, to respond effectively to the improving maritime antiaccess/area-denial (A2/AD) capabilities of other countries, particularly China;134
technically feasible as a result of advances in technologies for UVs and for
networking widely distributed maritime forces that include significant numbersof UVs; andaffordable—no more expensive, and possibly less expensive, than the current
fleet architecture for a given level of overall fleet capability, so as to fit within
expected future Navy budgets.

Shifting to a more distributed force architecture, Navy and Marine Corps officials have indicated,
will support implementation of the Navy and Marine Corps’ new overarching operational
concept, called Distributed Maritime Operations (DMO), and a supporting Marine Corps
operational concept called Expeditionary Advanced Base Operations (EABO).135 A key aim of
DMO and EABO is to improve the ability of the Navy and Marine Corps to counter China’s
improving maritime military capabilities.
Some elements of the Navy’s new, more distributed fleet architecture are reflected in Navybudget submission, including the following:•••development of a smaller amphibious warship called the Medium Landing Ship
(LSM) (previously referred to as the Light Amphibious Warship, or LAW);136
development of a smaller resupply ship called the Light Replenishment Oiler(TAOL) (previously referred to as Next-Generation Medium Logistics Ship, or
NGLS);137
development of two types of larger unmanned surface vehicles (USVs)—Large
USVs (LUSVs) and Medium USVs (MUSVs);138 and

134 Some observers have long urged the Navy to shift to a more distributed fleet architecture, on the grounds that the

Navy’s current architecture—which concentrates much of the fleet’s capability into a relatively limited number ofindividually larger and more expensive surface ships—is increasingly vulnerable to attack by the improving A2/AD
capabilities (particularly anti-ship missiles and their supporting detection and targeting systems) of potential
adversaries, particularly China. Shifting to a more distributed architecture, these observers have argued, would•
complicate an adversary’s targeting challenge by presenting the adversary with a larger number of Navy units
to detect, identify, and track;•
reduce the loss in aggregate Navy capability that would result from the destruction of an individual Navy
platform;•
give U.S. leaders the option of deploying USVs and UUVs in wartime to sea locations that would betactically advantageous but too risky for manned ships; and•increase the modularity and reconfigurability of the fleet for adapting to changing mission needs.
For more on China’s maritime A2/AD capabilities, see CRS Report RL33153, China Naval Modernization:
Implications for U.S. Navy Capabilities—Background and Issues for Congress, by Ronald O'Rourke.
135 For more on DMO, see, for example, Edward Lundquist, “DMO is Navy’s Operational Approach to Winning theHigh-End Fight at Sea,” Seapower, February 2, 2021. For more on EABO, see CRS Report R46374, Navy Light
Amphibious Warship (LAW) Program: Background and Issues for Congress, by Ronald O'Rourke.
136 For more on the LSM program, see CRS Report R46374, Navy Medium Landing Ship (LSM) (Previously Light
Amphibious Warship [LAW]) Program: Background and Issues for Congress, by Ronald O'Rourke.
137 For more on the TAOL program, see CRS In Focus IF11674, Navy Light Replenishment Oiler (TAOL) (Previously
Next-Generation Logistics Ship [NGLS]) Program: Background and Issues for Congress, by Ronald O'Rourke.
138 For more on the LUSV and MUSV programs, see CRS Report R45757, Navy Large Unmanned Surface andUndersea Vehicles: Background and Issues for Congress, by Ronald O'Rourke.

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procurement of large unmanned underwater vehicles (UUVs) called Extra Large
UUVs (XLUUVs).139

Cooperation with Naval Forces of Allies and Other Countries
U.S. Navy efforts to increase cooperation with naval forces from allies such as Japan andAustralia and other countries such India appear aimed in part at expanding existing bilateralforms of naval cooperation (e.g., U.S.-Japan, U.S.-Australia, U.S.-India) into trilateral (e.g., U.S.Japan-Australia, U.S.-Australia-India) or quadrilateral (U.S.-Japan-Australia-India) forms that
could enhance the ability of the United States and its allies in the Indo-Pacific region to balanceagainst China’s growing military capabilities and deter potential assertive actions by China.140

Issues for Congress
Overview
The overall issue for Congress is whether to approve, reject, or modify the Biden
Administration’s proposed U.S. Navy plans, budgets, and programs for responding to China’s
naval modernization effort. Within this overall issue, specific issues include the following:
•

•

•

•

•

the current and potential future U.S.-China balance of naval power in general,and in specific geographic areas, particularly the Taiwan Strait and the South
China Sea;
whether the planned size of the Navy will be appropriate for countering China’s
naval modernization effort in coming years while also permitting the Navy toperform other missions, including countering Russian military forces in the
Atlantic and the Mediterranean, and defending U.S. interests in the Middle East;
whether Navy shipbuilding plans, Navy plans for keeping existing Navy ships inservice, and resulting Navy projections of future Navy force levels are consistent
with the goal of increasing the size of the Navy toward a total of 355 ships or a
successor force-level goal;
whether the Navy is doing enough to• improve its ability to counter China’s ASBMs, hypersonic weapons, or othermaritime A2/AD weapons, such as wake-homing torpedoes;• develop and procure new ASCMs with ranges that match or exceed those of
China’s longer-ranged ASCMs;• increase the operating range of Navy carrier air wings, so as to improve theability of carriers and their air wings to achieve effects while operating at
longer distances from Chinese ASBMs and other A2/AD weapons; andwhether Congress should modify acquisition policies or the metrics for judging
the success of acquisition programs so as to facilitate faster development of newtechnologies and weapons for the Navy—and if so, how those policies or metrics
should be modified.

139 For more on the XLUUV program, see CRS Report R45757, Navy Large Unmanned Surface and Undersea

Vehicles: Background and Issues for Congress, by Ronald O'Rourke.
140 For additional discussion, see CRS In Focus IF11678, The “Quad”: Security Cooperation Among the United States,
Japan, India, and Australia, coordinated by Emma Chanlett-Avery.

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U.S.-China Balance of Naval PowerRegarding the U.S.-China balance of naval power in general, U.S. and other observers generally
assess that while the United States today has more naval capability overall, China’s naval
modernization effort since the 1990s has substantially reduced the U.S. advantage, and that if
current U.S. and Chinese naval capability trends (such as those shown in Table 1 and Table 2) do
not change, China might eventually draw even with or surpass the United States in overall naval
capability. In remarks to a conference on November 3, 2022, for example, Admiral Charles A.
Richard, commander of U.S. Strategic Command, stated
As I assess our level of deterrence against China, the ship is slowly sinking. It is sinking
slowly, but it is sinking, as fundamentally they are putting capability in the field faster than
we are. As those curves keep going, it isn't going to matter how good our [operating plan]is or how good our commanders are, or how good our forces are—we're not going to haveenough of them. And that is a very near-term problem....
Undersea capabilities is still the one ... maybe the only true asymmetric advantage we still
have against our opponents. But unless we pick up the pace, in terms of getting ourmaintenance problems fixed, getting new construction going ... if we can't figure that out... we are not going to put ourselves in a good position to maintain strategic deterrence andnational defense.141

Regarding the U.S.-China naval balance of power specifically in the South China Sea, someobservers are concerned that China has already drawn even with or even surpassed the UnitedStates. U.S. Navy Admiral Philip Davidson, in responses to advance policy questions from the
Senate Armed Services Committee for an April 17, 2018, hearing before the committee toconsider nominations, including Davidson’s nomination to become Commander, U.S. PacificCommand (PACOM),142 stated that “China is now capable of controlling the South China Sea inall scenarios short of war with the United States.”143
Skeptics of assessments like those above might argue that they do not give adequate weight torelative U.S. strengths (and corresponding Chinese relative weaknesses and limitations) in areas
such as undersea warfare; personnel quality, training, and initiative; operational experience(particularly in combat situations); joint operations with other U.S. military services; andpotential support from allies and partners, particularly Japan and Australia. A December 7, 2022,
blog post, for example, states
One of the data points used to bolster the China threat argument is the relative size of thetwo naval fleets, but not all fleets are created equal. In terms of the number of ships, thePeople’s Liberation Army Navy (PLAN) is significantly larger than the U.S. Navy.... The
discrepancy between the Chinese fleet and the U.S. fleet is already striking, but it will likely
only grow in the coming years, and that simple fact will undoubtedly continue to be
exploited by defense hawks....
While the raw data may seem alarming, they hardly tell a complete story. What the U.S.
fleet lacks in total numbers it more than makes up in tonnage. The relative weight of a fleet
141 C. Todd Lopez, “Stratcom Commander Says U.S. Should Look to 1950s to Regain Competitive Edge,” DOD News,

November 3, 2022. (Material in brackets and ellipses as in original.) Admiral Richard’s remarks are quoted similarly in
Oliver Parken and Tyler Rogoway, “Extremely Ominous Warning About China From US Strategic Command Chief,
Admiral Richard Says ‘The Big One’ with China Is Coming and the “Ship Is Slowly Sinking” in Terms of U.S.
Deterrence,” The Drive, November 6, 2022; and Max Hauptman, “US Strategic Command Chief: Ukraine ‘Just the
Warmup’ for ‘the Big One’ with China,” Task & Purpose, November 8, 2022.
142 The name of the command has since been changed to the U.S. Indo-Pacific Command (INDOPACOM).
143 Advance Policy Questions for Admiral Philip Davidson, USN Expected Nominee for Commander, U.S. PacificCommand, p. 18. See also pp. 8, 16, 17, 19, and 43.

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is significant because it indicates the sailing range and purpose of the fleet. Larger ships
are needed for longer voyages, since they can carry more fuel and munitions. For instance,
the U.S. Navy’s global mission necessitates larger ships capable of spanning oceans andoperating away from friendly shores and land-based defenses.
The Chinese fleet combined displaces approximately 1,854,000 tons, less than half of thetotal tonnage of the U.S. Navy. The difference is easy to see when comparing similar vessel
types....
The larger American ships give the fleet a significant advantage in a number of areas,
including the capacity to launch cruise missiles. U.S. surface ships have more than 9,000
vertical missile launch cells, compared to the 1,000 in the Chinese fleet.17
When it comes to submarines, the Chinese force is about the same size as the U.S. Navy’s,
but the two differ significantly in capability....
China’s Navy would have a difficult time operating outside the waters adjacent to themainland because it lacks the structure necessary to do so. Much has been made about
Chinese aircraft carriers in recent years, but the carrier fleet remains in its infancy....
The Chinese military overall lacks experience conducting major modern combat
operations. The Chinese last fought a war in 1979, when the People’s Liberation Armybriefly invaded northern Vietnam in support of China’s allies in Cambodia and to disrupt
the alliance between the Vietnamese and the Soviet Union.... Chinese military leaders are
now two generations removed from actual combat experience, which calls into question
their potential prowess.144

Davidson Window/Decade of Concern
Some Members of Congress and other U.S. observers are concerned about the possibility that
China might attack Taiwan sometime between 2021 and 2027 (a timeframe sometimes referred toas the Davidson window)145 or between 2020 and 2030 (a timeframe sometimes referred to as the

144 Dan Grazier, “China Threat Inflation and America’s Nonsensical Plans,” Project on Government Oversight(POGO), December 7, 2022. See also Brad Lendon, “China Has Built the World’s Largest Navy. Now What’s Beijing
Going to Do with It?” CNN, March 5, 2021.
145 At a March 9, 2021, hearing before the Senate Armed Services Committee, Admiral Philip S. Davidson,
Commander, U.S. Indo-Pacific Command (USINDOPACOM), when asked about a timeline for a potential conflict in
the Taiwan Strait, replied
I think our concerns are manifest here during this decade not only on the development, the numberof ships, aircraft, rockets, etc. that they have—that they have put in the field but the way they areadvancing those capabilities as well in combination with everything that you just cited Hong Kong
and Tibet and line of actual control in the South China Sea, in the East China Sea.
I worry that they are accelerating their ambitions to be—to supplant the United States and ourleadership role in a rules-based international order which they have long said that they want to dothat by 2050. I'm worried about the moving that target closer. Taiwan is clearly one of theirambitions before that, and I think the threat is manifest during this decade, in fact, in the next six
years.
(CQ transcript of hearing. See also, for example, William Cole, “China Could Soon Outgun US in
Western Pacific, Indo-Pacific Chief Says,” Honolulu Star-Advertiser, March 6, 2021; Mallory
Shelbourne, “Davidson: China Could Try to Take Control of Taiwan In ‘Next Six Years,’” USNI
News, March 9, 2021; Adela Suliman, “China Could Invade Taiwan in the Next 6 Years, Assume
Global Leadership Role, U.S. Admiral Warns,” NBC News, March 10, 2021.)
The period between 2021 and 2027 subsequently came to be referred to by some observers as the Davidson window.
Possibly the earliest user of the term was Jerry Hendrix; see, for example, Jerry Hendrix, “Closing the Davidson
Window,” Real Clear Defense, July 3, 2021. See also Miya Tanaka, “Ex-U.S. Indo-Pacific Commander Sticks to 2027
Window on Taiwan Aattack,” Kyodo News, January 23, 2023.

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decade of concern),146 and about the readiness the U.S. military, including the U.S. Navy, for a
conflict in that timeframe.
In addition to the Davidson window and the decade of concern, some observers have offeredalternative near-term time windows.147 Still other observers, including some DOD officials,
believe a Chinese attack on Taiwan does not appear to be imminent or is not particularly likely tooccur in the near term,148 or have questioned the notion of identifying a particular time window.149
For observers who are concerned about the Davidson window or decade of concern, given thetime needed to build major U.S. Navy warships (typically several years), decisions made now on
procuring new ships for the Navy will have only a small impact on the number of ships the Navy
will have in service during the Davidson window or the decade of concern. (Decisions made now
on procuring new ships for the Navy will primarily impact the number of ships the Navy will
have in service in years after the Davidson window or the decade of concern, a time period whichis also of potential concern to policymakers.) Options for bolstering Navy capabilities during theDavidson window or the decade of concern focus mostly on matters other than procuring new
ships, including but not limited to the following, which are not presented in any particular order:

146 Possibly the earliest user of the term decade of concern was James (Jim) Fanell. See, for example, China’s National

Sovereignty and the Tightening Noose Around the Senkaku Islands, James E. Fanell, Captain U.S. Navy (Retired),
Testimony before Hearing on the Hotspots Along China’s Periphery, Panel II: How China Prepares to Fight in
Hotspots: East China Sea / Senkaku Islands Contingency Operation, U.S.-China Economic and Security Review
Commission, April 13, 2017, p. 3, 25-27, 32; Jim Fanell, “Now Hear This—The Clock is Ticking in China: The
Decade of Concern Has Begun,” U.S. Naval Institute Proceedings, October 2017; China’s Global Naval Strategy andExpanding Force Structure: Pathway to Hegemony, Testimony by Captain James Fanell (USN, Ret.) [preparedstatement for hearing on China’s worldwide military expansion before the House Permanent Select Committee onIntelligence, May 17, 2018], pp. 55-59; Bonnie Girard, “Time to Counter China and Rebuild the US Navy? A Former
U.S. Pacific Fleet Naval Intelligence Chief Testifies to Congress on China’s Maritime Ambitions,” Diplomat, May 23,
2018; James E. Fanell, “Asia Rising: China’s Global Naval Strategy and Expanding Force Structure,” Naval War
College Review, Winter 2019.
147 See, for example, Keoni Everington, “China Could Invade Taiwan in ‘A Year or Two’: Former US National
Security Adviser,” Taiwan News, May 5, 2023; Takashi Imai (Yomiuri Shimbun), “China May Invade Taiwan Within
2 Years, Former U.S. National Security Adviser Says,” Japan News, May 4, 2023; Bill Gertz, “China Held Taiwan
War Council in October, General’s Memo Reveals, Memo Predicting Conflict by 2025 Clashes with Biden Detente
Push,” Washington Times, February 2, 2023; Mallory Shelbourne, “China’s Accelerated Timeline to Take Taiwan
Pushing Navy in the Pacific, Says CNO Gilday,” USNI News, October 19, 2022. See also Robert Delaney, “US Navy
Should Prepare for an Invasion of Taiwan as Soon as This Year, Fleet Chief Says,” South China Morning Post, October
20, 2022; Demetri Sevastopulo, “US Navy chief warns China could invade Taiwan before 2024,” Financial Times,
October 20, 2022; Agence France-Presse, “ China Could Invade Taiwan This Year, US Admiral Warns,” News.com.au,
October 21, 2022.
148 See, for example, J. Tedford Tyler, “China Isn’t Ready to Invade Taiwan,” National Interest, December 11, 2022;
Meghann Myers and Joe Gould, “Pentagon Sees No Imminent Threat to Taiwan from Chinese Buildup,” MilitaryTimes, November 29, 2022; Jerusalem Post Staff, “US General Mark Milley Says Invading Taiwan Would Be ‘Very
Difficult’ for China,” Jerusalem Post, November 18, 2022; Derek Grossman, “Xi Jinping Is Not Looking to Go to War
over Taiwan Anytime Soon, Little Sign Chinese Leader Is Accelerating Invasion Preparations,” Nikkei Asia, November
16, 2022; Nick Wadhams, “China Won’t Be Able to Attack Taiwan in Near Future, US General Milley Says,”
Bloomberg, November 16, 2022; John Grady, “China Will Increase Pressure on Taiwan in Next Two Years Rather
Than Invade, Says Pentagon Official,” USNI News, November 7, 2022; Briana Reilly, “DOD Policy Chief Doesn’t
Anticipate Taiwan Invasion in ‘Near Term,’” Inside Defense, November 4, 2022; Iain Marlow, “‘Sloppy’ US Talk on
China’s Threat Worries Some Skeptical Experts,” Bloomberg, November 3 (updated November 4), 2022; Timothy R.
Heath, “Is China Planning to Attack Taiwan? A Careful Consideration of Available Evidence Says No,” War on theRocks, October 14, 2022.
149 See, for example, Bryan Clark, “Adm. Franchetti, Biden’s Pick For CNO, Should Focus on the Short Game,”
Defense News, August 21, 2023; Demetri Sevastopulo, “US Commander Pushes Back against Colleagues ‘Guessing’Taiwan Invasion Date,” Financial Times, April 18, 2023.

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•

•

•

•

•
•
•

•

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•
•

keeping existing ships and aircraft in service during the Davidson window ordecade of concern rather than retiring them during the Davidson window ordecade of concern (while preserving the option of retiring them after the end of
the Davidson window or decade of concern);increasing the material readiness of existing ships and aircraft, so as to maximize
the percentage of them that are available for operations, by working down ship
and aircraft maintenance backlogs;
shifting additional ships, aircraft, weapons, and supplies from the Atlantic theater
to the Pacific theater (although the risks of doing that in connection withdeterring and responding to Russian actions in the Atlantic and Mediterranean
would be a factor to consider);upgrading existing ships, aircraft, and weapons, particularly through the
installation of improved or additional systems or components that can be quickly
switched out or bolted on;
procuring new aircraft, weapons, and unmanned systems, if they can enter
service before the end of the Davidson window or the decade of concern;150
procuring spare parts and supplies and positioning them in the Pacific;
acting to alleviate bottlenecks or otherwise increase the capacity of the industrial
base to produce aircraft, weapons, and supplies and/or repair ships, aircraft,
weapons, and supplies;
hardening air bases and other land-based facilities in the Pacific that support U.S.
Navy operations so as to improve their ability to withstand attack by Chinese
missiles or other weapons;
increasing intelligence, surveillance and reconnaissance (ISR) activities forunderstanding and monitoring China’s naval forces;
increasing activities for measuring and understanding the physical operating
environment in the Pacific;
increasing the operational proficiency of Navy personnel through training andexercises; andincreasing operations for demonstrating U.S. Navy capabilities to China and/or
perhaps creating uncertainty or confusion in China about U.S. Navy capabilities,
concepts of operations, or tactics.151

150 Regarding the adequacy of Navy weapon inventories for a potential conflict in the Pacific, see Nick Wilson, “Del

Toro: Navy Needs Larger Missile Stockpiles in the Pacific,” Inside Defense, May 2, 2023.
151 See also Mark F. Cancian, Security in the Western Pacific, Building Future Capabilities in the Time of AUKUS,
Center for Strategic and International Studies (CSIS), January 2024, 36 pp. The report states:
Although strategists seek to expand the number of submarines, the U.S. submarine fleet will not
grow beyond its current size until the 2040s. Thus, the project studies wargames and the war in
Ukraine to identify ways for the United States and its partners to manage this submarine gap. (Page1)
See also The Department of the Navy and Strategic Competition with the People’s Republic of China, Center for Naval
Analyses (CNA), September 2023, 44 pp. The report’s abstract states, “The Chief of Staff to the Secretary of the Navy
asked the Center for Naval Analyses (CNA) for near-term recommendations for how DON [the Department of theNavy] can better position itself for such competition in peacetime—that is, below the threshold of armed conflict.”(Page i)Congressional Research Service

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Divest to Invest
Related to discussion of the Davidson window or decade of concern is discussion of what DOD
refers to as its divest-to-invest budget strategy, which refers to DOD’s budget proposals foreliminating certain existing U.S. military platforms (e.g., ships and aircraft) and capabilities that it
views as not well aligned with current and projected mission needs so as to release funding for
application to what DOD views as higher priorities, including expanding other current militarycapabilities that DOD views as better aligned with current mission needs, and developing future
military capabilities that DOD views as better aligned with projected future mission needs.152 As
part of DOD’s divest-to-invest strategy, the military services have included proposed divestments
as part of their proposed budgets for FY2024 and prior years.153 The Department of the Navystates in its FY2024 budget submission that it “continues to scrutinize the portfolio and divest
where appropriate to field the strongest balance of capabilities.”154 Proposed divestments in Navybudget submissions for FY2024 and prior years include proposals to retire certain ships(particularly Littoral Combat Ships, or LCSs) before the end of their expected service lives.155
The Navy, DOD, and other supporters of the divest-to-invest strategy argue that it is not costeffective to continue expending funds on platforms and capabilities that are not well aligned withcurrent and projected mission needs, particularly if doing so reduces funding available for current
or future capabilities that would be better aligned with current or projected future mission needs.
Skeptics of the divest-to-invest strategy argue that it can reduce near-term capabilities that could
be useful during the Davidson window or decade of concern, and do so in return for, in somecases, the promise of future capabilities whose realization is uncertain and would happen after theDavidson window or decade of concern. Rather than divesting certain existing platforms, theyargue, military officials should focus more on identifying how those platforms might be modified
to better align with current and projected future mission needs.156

Other Specific Issues
As noted earlier, the planned size of the Navy and the shift to a more-distributed fleet architecture
are discussed in detail in another CRS report.157
The issue of the Navy’s ability to counter China’s ASBMs and hypersonic weapons is discussed
in detail in this report in Appendix B.

152 In connection with DOD’s proposed FY2023 budget, for example, see Jim Garamone, “Austin Lays Out Reasoning

Behind DOD Budget Request,” DOD News, April 7, 2022.
153 See, for example, Sean Carberry, “Budget 2024: Air Force Budget Continues Divest to Invest Strategy,” National
Defense, March 14, 2023.
154 Department of the Navy, Highlights of the Department of the Navy FY 2024 Budget, March 2023, p. 12-3. See also
the discussion of proposed Navy FY2023 divestments in Department of the Navy, Highlights of the Department of theNavy FY 2023 Budget, 2022, pp. 12-2 through 12-7.
155 See, for example, Mallory Shelbourne, “SECNAV, CNO Pushing Plans to Decommission 11 Warships in Fiscal
Year 2024,” USNI News, March 20, 2023, and the discussion of proposed Navy FY2023 divestments in Department of
the Navy, Highlights of the Department of the Navy FY 2023 Budget, 2022, pp. 12-2 through 12-7.
156 See, for example, Mackenzie Eaglen, “Shrinking U.S. Military Capacity Now For Capabilities Later Is A Mistake,”
19FortyFive, May 1, 2023; Mackenzie Eaglen, “The Bias for Capability over Capacity Has Created a Brittle Force,”
War on the Rocks, November 17, 2022; John Michael Loh, “US Air Force’s ‘Divest to Invest’ Plan Is Too Risky,”
Defense News, November 16, 2022; Hallie Coyne, “Bad Idea: Divest to Invest,” Center for Strategic and International
Studies (CSIS), December 10, 2021.
157 See CRS Report RL32665, Navy Force Structure and Shipbuilding Plans: Background and Issues for Congress, by
Ronald O'Rourke.

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The issue of the Navy’s ability to counter wake-homing torpedoes may have been made morepressing by the reportedly poor performance of an anti-torpedo torpedo that the Navy wasdeveloping as a means for Navy surface ships to counter hard-to-decoy wake-homing torpedoes
and other torpedoes. The Navy reportedly removed the anti-torpedo torpedo system from theships that were equipped with it.158
The Navy has initiated efforts to develop and procure longer-ranged ASCMs and other new
weapons, but some observers have expressed frustration that these efforts are not moving quickly
enough.159 In support of its efforts, the Navy testified in March 2023 as follows:
Tomahawk [cruise missile]
The Navy is continuing investment into Tomahawk Block V new production, Maritime
Strike [i.e., anti-ship] Tomahawk, and recertification/modernization of Tomahawk Block
IV. The FY 2024 budget request adds $23.4 million to reduce Tomahawk production leadtime. These funds are being invested to increase industrial capacity, specifically by
relieving chokepoints within the Tomahawk production line.
In the FY 2024 budget request, the Department sustains the Tomahawk as the nation's
premier all-weather, long-range, survivable deep strike offensive weapon to include new
production of and recertification of current inventory into modernized BLK V Tomahawk
missiles. BLK V(a) Maritime Strike Tomahawk (MST) provides a long-range moving
maritime strike capability [i.e., a capability to hit moving ships at sea] to meet current andfuture threats, supporting the Surface Warfare Mission area through the inclusion of aseeker suite in the Tomahawk BLK V missile. The FY 2024 budget request for MST
provides continuation of Test and Evaluation (T&E) plans that include missile functional
ground testing and missile test flights from a ground launcher apparatus to assess seeker
performance, mature and refine seeker algorithms, and provide verification and validation
data for Modeling and Simulation. MST IOC [initial operational capability] is planned for
FY 2025. The FY 2024 budget request continues engineering, manufacturing, anddevelopment of the Joint Multiple-Effects Warhead System (JMEWS), which will delivera hardened target penetration capability with the Tomahawk BLK V(b) missile in FY 2027.
The FY 2024 budget request continues engineering, manufacturing, and development of
the Military Code Global Positioning System (GPS) receiver, which will deliver significant
increased resiliency in spoofing and jamming threat environments to the Tomahawk BLK
V missile in FY 2026.
Offensive Anti-Surface Warfare (OASuW) Increment 1/ Long Range Anti-Ship
Missile (LRASM), LRASM C-1/C-3, and OASuW Increment 2 / HALO
The FY 2024 President’s Budget requests $639.6 million to initiate LRASM MYP[multiyear procurement]160 with the USAF. The FY 2024 procurement funding covers the
EOQ [economic order quantity materials [i.e., up-front batch orders of components] along
158 For additional discussion, see Alex Lockie, “US Navy Admits Failure on $760 Million Weapon to Prtect Its Aircraft

Carriers from An Age-Old Threat,” Business Insider, February 5, 2019; Joseph Trevithick, “The Navy Is Ripping Out
Underperforming Anti-Torpedo Torpedoes From Its Supercarriers,” The Drive, February 5, 2019. For an article
advocating certain measures to improve the Navy’s ability to counter China’s submarines in general, see Walker Mills,
Collin Fox, Dylan Phillips-Levine, and Trevor Phillips-Levine, “China’s Sub Force Is Growing More Powerful. This Is
What the US Navy Needs to Do to Stay Ahead,” Military.com, November 8, 2021.
159 See, for example, James Turnwall, “The Navy Is Losing the Missile Arms Race,” U.S. Naval Institute Proceedings,
November 2019. For similar discussions regarding U.S. and Chinese air-to-air missiles, see Douglas Barrie, “Will
America’s Next Long-Range Air-to-Air Missile Match Up to China’s?” Defense One, October 22, 2019; Joseph
Trevithick, “Meet The AIM-260, The Air Force And Navy’s Future Long-Range Air-To-Air Missile,” The Drive, June21, 2019; Thomas Newdick, “Testing Of The Secretive New AIM-260 Long-Range Air-To-Air Missile Is Well
Underway,” The Drive, November 22, 2021.
160 For more on MYP contracting, see CRS Report R41909, Multiyear Procurement (MYP) and Block Buy Contractingin Defense Acquisition: Background and Issues for Congress, by Ronald O'Rourke.

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with the buy of 91 DON LRASM weapon systems in the initial year of the five-year MYP.
The FY 2024 President’s Budget request also includes RDT&E funding for the completionof the LRASM 1.1 capability improvements.
The LRASM C-1 and C-3 variants add near-term, cost-effective capacity to the DON’slong range strike capability while enhancing the OASuW mission. The FY 2024 budget
requests funding for Navy strike mission integration and employment by upgrading theexisting AGM-158 product [i.e., LRASM] to respond to rapidly changing threats. Navy
AGM-158 development efforts also involve development and integration of a Beyond
Line-of-Sight radio subsystem to enable dual mission capability and enhanced operational
flexibility, optimizing carrier magazine capacity to complement OASuW warfighting
capability. The FY 2024 President's Budget requests $141.9 million to continue developing
AGM-158 derived capability and radio integration on F/A-18; develop software for strike
mission planning, Universal Armament Interface and missile Operational Flight Plan. The
FY 2024 President’s Budget request also includes $83.7 million for procurement of theinitial 10 LRASM in the C-3 configuration.
The FY 2024 President’s Budget includes $95.8 million in support of OASuW Increment
2, which is now referred as Hypersonic Air Launched OASuW (HALO). HALO supports
the national imperative to mature hypersonic capabilities and will provide the Navy anecessary air-launched, carrier-based weapon to address evolving long range, high speed
threats from near peer competitors. In order to deliver this capability to the warfighter whenneeded, the DON will collaborate heavily with the Air Force. 161
Advanced Anti-Radiation Guided Missile (AARGM) & AARGM Extended-Range(AARGM-ER)
AARGM domestic procurement completed in FY 2021 with the award of the last DON
Full Rate Production (FRP) contract. There have been 1450 AARGMs (All Up Rounds,
Training Missiles, and Spares) delivered to the Fleet as of March 2023. Program of recorddelivery is 1803 missiles. Deliveries continue through FY 2024 in support of the transition
to AARGM-ER. AARGM-ER provides the DON with a 5th generation compatible
extended-range asset to project power and provide Suppression of Enemy Air Defenses,
both at-sea and on land. The first AARGM-ER delivery is scheduled for 4QFY23. The
budget requests $195.7 million in Weapons Procurement, Navy (WPN) to procure 77
AARGM-ER all-up-rounds and six Captive Air Training Missiles. The FY 2024
President’s Budget requests $51.8 million in RDT&E to support operational andIntegration testing of production representative hardware.
Hypersonic Program
The DON is developing a hypersonic weapon system that will enable precise and timely
strike capability against deep inland targets in contested environments. In collaboration
with the Army, the Department is leveraging a common All Up Rounds missile design andtest opportunities to field a conventional hypersonic weapon system [i.e., the Conventional
Prompt Strike weapon (CPS)]. Zumwalt Class DDGs will be the first Navy platform tofield this hypersonic capability in the mid-2020s, followed by Block V Virginia Class SSNs
starting in the early 2030s. In March 2020, the Services executed a successful flight test of
the Common Hypersonic Glide Body [to be used on CPS], and in June 2022, the Services
followed up that testing with several static-fire tests and a flight test of the newly developed
two-stage Solid Rocket Motor. The DON has validated the design of the Navy’s cold-gas
launch approach and continued sounding rocket testing in support of future capability,
manufacturability, and affordability improvements. This rapid development and
161 See also Nick Wilson, “Navy Looks to Streamline HALO Fielding with MTA Rapid Prototyping Approach,” Inside

Defense, May 4, 2023; Justin Katz, “Hypersonic Ship-Killer: Navy Taps Lockheed, Raytheon to Start Developing
HALO Missile,” Breaking Defense, March 29, 2023; “Navy Moves Forward with Hypersonic, Carrier-Based Weapon,”
Naval Air Systems Command (NAVAIR), March 28, 2023.

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demonstration of hypersonic strike weapon systems supports the U.S. ability to deter, andif necessary, defeat potential adversaries.
The Department’s FY 2024 budget request funds continued build of the first three All Up
Rounds [of CPS] to be delivered to the first Zumwalt Class DDG and All Up Rounds for
future flight testing, supports construction of the Underwater Launch Test Facility, andexecutes two flight tests, including the first launch of the CPS All Up Round using thecold-gas launch approach for sea-based fielding. The request totals $901 million in CPS
R&D funding. Additionally, the request includes $341 million in funding to procure
additional rounds in support of Zumwalt Class fielding.
The Marine Corps is working towards the capability to employ smaller, highly mobile
hypersonic weapons through science and technology initiatives. The Marine Corps ispursuing an acquisition strategy that leverages the developmental work of other Services
and agencies, investing when the capability has reached a higher technology readiness levelthat allows for expedited prototype experimentation at reduced costs.
Torpedoes
The Department continues to invest heavily in increasing the capacity and capability ofboth the Heavyweight and Lightweight Torpedo inventories to maintain our advantage inthe undersea domain against our strategic competitors. The MK 48 Heavyweight Torpedo
is the Navy’s primary submarine-launched ASW and ASuW weapon. While the Navy has
continued to upgrade its existing inventory to incorporate the latest technology andcapability, the Navy restarted production of the MK 48 to meet munitions requirements
and during the summer of 2022 accepted the first new production heavyweight torpedoes
in over twenty years. In addition, the Department is progressing development of newcapabilities with the MK 48 MOD 8 and MK 48 MOD 9 to maintain our advantage over
the threat today and in the future. The MK 54 Lightweight Torpedo, which is employed byboth surface ships and air platforms, continues to be produced and upgraded to keep pacewith the ASW threat. At current production demand, the torpedo industrial base remains
healthy, producing the MK 54 MOD 0 for the Nation’s allied partners in addition to theupgraded MK 54 MOD 1 for the U.S. Navy.
The Department has also partnered with industry and University Affiliated ResearchCenters to rapidly develop and field new and advanced capabilities to further our advantage
in the undersea domain. This includes the MK 54 MOD 2, which will improve performanceagainst the high-end threat, as well as a Very Light Weight Torpedo that will deliver multimission capability as both a hard-kill torpedo countermeasure and a short range ASW
weapon. The Navy is also expanding the methods in which the MK 54 is employed toprovide greater flexibility, effectiveness, and lethality. From high altitude via the P-8A andthe High Altitude ASW Weapon Capability (HAAWC) wing kit, to the Hammerhead
encapsulated effector and future stand-off ASW capabilities, MK 54 payloads will continue
to be essential to the US Navy’s and its Allies’ ASW mission. 162

An April 19, 2021, press report stated, “Exposing a new layer of long-range striking power for the
U.S. Navy carrier battle group, a photo obtained by Aerospace Daily shows what appears to be a

162 Statement of Frederick J. Stefany, Assistant Secretary of the Navy (Research, Development and Acquisition),

Acting and Vice Admiral Scott Conn, Deputy Chief of Naval Operations, Warfighting Requirements and Capabilities(OPNAV N9) and Lieutenant General Karsten S. Heckl, Deputy Commandant, Combat Development and Integration,
Commanding General, Marine Corps Combat Development Command, before the Subcommittee on Seapower of the
Senate Armed Services Committee on Department of the Navy Fiscal Year 2024 Budget Request for Seapower, March
28, 2023, pp. 33-36. See also Aaron-Matthew Lariosa, “US Navy Looks To Drastically Increase Missile Production,”
Naval News, April 5, 2023; Brian Everstine, “New U.S. Navy Weapons Plan Favors Speed Over Range,” Aviation
Week, September 19, 2022.

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Raytheon RIM-174 SM-6 [Standard Missile 6] missile integrated on a left wing pylon of a
Boeing F/A-18F Super Hornet in flight.”163
The issue of the operating range of Navy carrier air wings is a key component of an ongoingdebate over the future survivability, utility, and cost-effectiveness of aircraft carriers and their air
wings, with critics arguing that the current operating range of Navy carrier air wings will force
Navy aircraft carriers to operate well within the ranges of Chinese ASBMs or other A2/AD
systems, which could put the carriers’ survivability at substantial risk, or alternatively require
carriers to operate beyond the range of those Chinese A2/AD systems, in locations that are safer
but so far away that the carriers and their air wings will contribute little combat capability.
A key U.S. Navy program for increasing the operating range of Navy carrier air wings is the MQ25 Stingray program, which is a program to acquire a carrier-based unmanned aerial vehicle(UAV) for use as a tanker for in-flight refueling of manned carrier-based aircraft (with asecondary mission of intelligence, surveillance, and reconnaissance). Some observers, while notnecessarily objecting to the MQ-25 program, argue that the Navy should do more to increase theoperating range of Navy carrier air wings, such as developing a stealthy, carrier-based UAV
capable of penetrating enemy air defenses and striking land targets at very long ranges.
The issue of acquisition policies and the metrics for judging their success is discussed in moredetail in another CRS report.164

Legislative Activity for FY2024
Coverage in Related CRS Reports
A variety of CRS reports cover U.S. Navy programs that in varying degrees can be viewed as
responses to, at least in part, China’s naval modernization effort. These reports, which include
legislative activity on the programs they cover, include but are not limited to the following:
•
•
•
•
•
•
•

CRS Report RL32665, Navy Force Structure and Shipbuilding Plans:
Background and Issues for Congress, by Ronald O'Rourke
CRS Report RL32418, Navy Virginia-Class Submarine Program and AUKUS
Submarine Proposal: Background and Issues for Congress, by Ronald O'Rourke
CRS In Focus IF11826, Navy Next-Generation Attack Submarine (SSN[X])Program: Background and Issues for Congress, by Ronald O'Rourke
CRS Report RS20643, Navy Ford (CVN-78) Class Aircraft Carrier Program:
Background and Issues for Congress, by Ronald O'Rourke
CRS Report RL30563, F-35 Joint Strike Fighter (JSF) Program, by Jeremiah
Gertler (the JSF program is a joint DOD program with Navy participation)
CRS Report RL32109, Navy DDG-51 and DDG-1000 Destroyer Programs:
Background and Issues for Congress, by Ronald O'Rourke
CRS In Focus IF11679, Navy DDG(X) Next-Generation Destroyer Program:
Background and Issues for Congress, by Ronald O'Rourke

163 “The Weekly Debrief: Air-Launched, SM-6-Like Missile Exposed In New Test Photo,” Aviation Week, April 19,

2021.
164 See CRS Report R43838, Renewed Great Power Competition: Implications for Defense—Issues for Congress, by
Ronald O'Rourke.

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•
•
•

•

•
•

CRS Report RL33745, Navy Aegis Ballistic Missile Defense (BMD) Program:
Background and Issues for Congress, by Ronald O'Rourke
CRS Report R44972, Navy Constellation (FFG-62) Class Frigate Program:
Background and Issues for Congress, by Ronald O'Rourke
CRS Report R46374, Navy Medium Landing Ship (LSM) (Previously Light
Amphibious Warship [LAW]) Program: Background and Issues for Congress, by
Ronald O'Rourke
CRS In Focus IF11674, Navy Light Replenishment Oiler (TAOL) (Previously
Next-Generation Logistics Ship [NGLS]) Program: Background and Issues forCongress, by Ronald O'Rourke
CRS Report R45757, Navy Large Unmanned Surface and Undersea Vehicles:
Background and Issues for Congress, by Ronald O'Rourke
CRS Report R44175, Navy Shipboard Lasers: Background and Issues forCongress, by Ronald O'Rourke

FY2024 National Defense Authorization Act (H.R. 2670/S. 2226/P.L.
118-31)
House
In H.R. 2670 as reported by the House Armed Services Committee (H.Rept. 118-125 of June 30,
2023)
•

•
•

Section 184 would direct DOD to submit a to expedite the full integration of theLong-Range Anti-Ship Missile (LRASM) into Air Force B-52 bombers, F-16
fighter aircraft, and any other type of aircraft fleet the Secretary of Defense
determines appropriate for inclusion in the plan.
Section 1079 would direct DOD to conduct an assessment of, and provide areport on, the effectiveness of low-cost anti-ship weapons in the Indo-Pacific.
Section 1314 would direct DOD to provide a report on the feasibility of
implementing one or more naval blockades of shipments of fossil fuels to China
in the event of an armed conflict between the United States and China.

SenateIn S. 2226 as reported by the Senate Armed Services Committee (S.Rept. 118-58 of July 12,2023), Section 1367 would direct DOD to complete an analysis of, and provide a report on, therisks and implications of a sustained military blockade of Taiwan by China.

Conference
The conference report (H.Rept. 118-301 of December 6, 2023) on H.R. 2670/P.L. 118-31 ofDecember 22, 2023 states:
Plan to expedite integration of Long-Range Anti-Ship Missiles into legacy aircraft fleets
The House bill contained a provision (sec. 184) that would require a plan from the Secretaryof Defense to integrate the Long-Range Anti-Ship Missile onto certain legacy aircraft.
The Senate amendment contained no similar provision.

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The House recedes.
The conferees direct the Secretary of Defense to submit a plan to the congressional defense
committees, not later than 180 days after enactment of this Act, to integrate the LongRange Anti-Ship Missile onto certain legacy aircraft. (Page 1005)

H.Rept. 118-301 also states:
Assessment of the effectiveness of low-cost anti-ship weapons in the Indo-Pacific
The House bill contained a provision (sec. 1079) that would require the Commander ofUnited States Indo-Pacific Command to conduct an assessment of the feasibility andeffectiveness of developing low-cost anti-ship munitions, as well as the appropriate mix
between existing long range, short range, and potential low-cost anti-ship weapons.
The Senate amendment contained no similar provision.
The House recedes.
The conferees agree that the Commander of United States Indo-Pacific Command should
conduct an assessment of the feasibility and effectiveness of developing low-cost anti-ship
munitions, as well as the appropriate mix between existing long range, short range, andpotential low-cost anti-ship weapons. The Secretary of Defense should provide a briefing
to the congressional defense committees within 180 days of enactment of this Act. (Page1197)

H.Rept. 118-301 also states:
Study and report on implementation of naval blockades of shipments of fossil fuels to China
in event of armed conflict
The House bill contained a provision (sec. 1314) that would require the Secretary of
Defense to submit a report to Congress that contains the findings of a study on thefeasibility of implementing naval blockades of shipments of fossil fuels to China in theevent of an armed conflict between the United States and China.
The Senate amendment contained no similar provision.
The House recedes.
The conferees direct the Secretary of Defense, not later than 90 days after the date of theenactment of this Act, to provide a briefing to the congressional defense committees
regarding the reliance of the Chinese People’s Liberation Army (PLA) on imported fossil
fuels for energy. The required briefing shall include:(1) An overview of the PLA’s energy sources;(2) A description of the means by which the PLA imports fossil fuels for energy, including
an identification of the ground and sea lines of communication used by the PLA to importfossil fuels;(3) An assessment of the extent to which a disruption to the supply of imported fossil fuels
would impact the readiness of the PLA; and(4) Any other matters deemed relevant by the Secretary. (Page 1269)

H.Rept. 118-301 also states:
Analysis of risks and implications of potential sustained military blockade of Taiwan by
the People’s Republic of China
The Senate amendment contained a provision (sec. 1367) that would require the Secretaryof Defense and the Chairman of the Joint Chiefs of Staff to complete a comprehensive

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58China Naval Modernization: Implications for U.S. Navy Capabilities

analysis of the risks and implications of a sustained military blockade of Taiwan by the
People’s Republic of China.
The House bill contained no similar provision.
The Senate recedes.
The conferees direct the Secretary of Defense and the Chairman of the Joint Chiefs of Staff,
in coordination with the Director of National Intelligence, not later than 180 days after thedate of the enactment of this Act, to submit a report to the congressional defense
committees, the Permanent Select Committee on Intelligence of the House ofRepresentatives, and the Select Committee on Intelligence of the Senate, containing acomprehensive analysis of the risks and implications of a sustained military blockade of
Taiwan by the People’s Republic of China. At a minimum, the analysis and report shall
include:(1) An assessment of the means by which the People’s Republic of China could execute asustained military blockade of Taiwan, including the most likely courses of action throughwhich the People’s Republic of China could attempt to impose such a blockade;(2) An identification of indications and warnings of a potential sustained military blockadeof Taiwan by the People’s Republic of China, and the likely timelines associated with such
indications and warnings;(3) An identification of other coercive actions that the People’s Republic of China may
potentially take in connection with such a blockade, including the seizure of outlying
islands;(4) An assessment of the impact of such a blockade on the ability of Taiwan to sustain its
self-defense capabilities, economy, and population;(5) An assessment of the potential negative impacts on the United States of such a
blockade;(6) An assessment of key military problems presented by such a blockade;(7) An assessment of the military capabilities necessary to address the problems identified
under subparagraph (6);(8) An assessment of the potential challenges to risk mitigation and escalation management
presented by such a blockade;(9) An assessment of the extent to which the potential for such a blockade is addressed by
the Joint Warfighting Concept and Joint Concept for Competing;(10) An identification of any necessary changes to the United States Armed Forces’ force
design, doctrine, or tactics, techniques, and procedures for responding to, or mitigating theimpact of, such a blockade; and(11) An assessment of the potential roles of partners and allies in addressing the challenges
posed by such a blockade.
Lastly, in producing the required analysis and report, the conferees direct the Secretary of
Defense to engage with the head of each appropriate Federal department or agency
regarding the challenges posed by a potential sustained military blockade of Taiwan by the
People’s Republic of China. (Pages 1274-1275)

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Appendix A. Comparing U.S. and Chinese Numbersof Ships and Naval Capabilities
This appendix presents some additional discussion of factors involved in comparing U.S. andChinese numbers of ships and naval capabilities.
U.S. and Chinese naval capabilities are sometimes compared by showing comparative numbers of
U.S. and Chinese ships. Although the total number of ships in a navy (or a navy’s aggregate
tonnage) is relatively easy to calculate, it is a one-dimensional measure that leaves out numerous
other factors that bear on a navy’s capabilities and how those capabilities compare to its assigned
missions. One-dimensional comparisons of the total numbers of ships in China’s navy and the
U.S. Navy are highly problematic as a means of assessing relative U.S. and Chinese naval
capabilities and how those capabilities compare to the missions assigned to those navies, for thefollowing reasons:•••A fleet’s total number of ships (or its aggregate tonnage) is only a partial
metric of its capability. Many factors other than ship numbers (or aggregate
tonnage) contribute to naval capability, including types of ships, types andnumbers of aircraft, the sophistication of sensors, weapons, C4ISR systems, andnetworking capabilities, supporting maintenance and logistics capabilities,
doctrine and tactics, the quality, education, and training of personnel, and therealism and complexity of exercises.165 In light of this, navies with similar
numbers of ships or similar aggregate tonnages can have significantly different
capabilities, and navy-to-navy comparisons of numbers of ships or aggregate
tonnages can provide a highly inaccurate sense of their relative capabilities. The
warfighting capabilities of navies have derived increasingly from thesophistication of their internal electronics and software. This factor can vary
greatly from one navy to the next, and often cannot be easily assessed by outside
observation. As the importance of internal electronics and software has grown,
the idea of comparing the warfighting capabilities of navies principally on thebasis of easily observed factors such as ship numbers and tonnages has become
increasingly less reliable, and today is highly problematic.
Total numbers of ships of a given type (such as submarines or surface
combatants) can obscure potentially significant differences in thecapabilities of those ships, both between navies and within one country’s
navy. Differences in capabilities of ships of a given type can arise from a numberof other factors, including sensors, weapons, C4ISR systems, networking
capabilities, stealth features, damage-control features, cruising range, maximum
speed, and reliability and maintainability (which can affect the amount of time
the ship is available for operation).
A focus on total ship numbers reinforces the notion that changes in total
numbers necessarily translate into corresponding or proportional changes inaggregate capability. For a Navy like China’s, which is modernizing by
replacing older, obsolescent ships with more modern and more capable ships, thisis not necessarily the case. For example, while China’s attack submarine force
has fewer boats now than it had in 2000 or 2005 (see Table 1 and Table 2), it has

165 For further discussion, see, for example, Robert McKeown, “Assessing Military Capability: More than Just

Counting Guns,” U.S. Naval Institute Proceedings, December 2022.

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•

•

•

considerably more aggregate capability than it did in 2000 or 2005, because theforce today includes a much larger percentage of relatively modern designs.
Comparisons of total numbers of ships (or aggregate tonnages) do not take
into account the differing global responsibilities and homeporting locationsof each fleet. The U.S. Navy has substantial worldwide responsibilities, and asubstantial fraction of the U.S. fleet is homeported in the Atlantic. As aconsequence, only a certain portion of the U.S. Navy might be available for acrisis or conflict scenario in China’s near-seas region, or could reach that area
within a certain amount of time. In contrast, China’s navy has more-limited
responsibilities outside China’s near-seas region, and its ships are all homeported
along China’s coast at locations that face directly onto China’s near-seas region.
In a U.S.-China conflict inside the first island chain, U.S. naval and other forces
would be operating at the end of generally long supply lines, while Chinese naval
and other forces would be operating at the end of generally short supply lines.
Comparisons of numbers of ships (or aggregate tonnages) do not take into
account maritime-relevant military capabilities that countries might haveoutside their navies, such as land-based anti-ship ballistic missiles (ASBMs),
land-based anti-ship cruise missiles (ASCMs), and land-based Air Force aircraft
armed with ASCMs or other weapons. Given the significant maritime-relevant
non-navy forces present in both the U.S. and Chinese militaries, this is aparticularly important consideration in comparing U.S. and Chinese militarycapabilities for influencing events in the Western Pacific. Although a U.S.-China
incident at sea might involve only navy units on both sides, a broader U.S.-China
military conflict would more likely be a force-on-force engagement involving
multiple branches of each country’s military.
The missions to be performed by one country’s navy can differ greatly fromthe missions to be performed by another country’s navy. Consequently, navies
are better measured against their respective missions than against one another.
Although Navy A might have less capability than Navy B, Navy A might
nevertheless be better able to perform Navy A’s intended missions than Navy B isto perform Navy B’s intended missions. This is another significant considerationin assessing U.S. and Chinese naval capabilities, because the missions of the twonavies are quite different.

As mentioned earlier, while comparisons of the total numbers of ships in China’s Navy and the
U.S. Navy are highly problematic as a means of assessing relative U.S. and Chinese naval
capabilities and how those capabilities compare to the missions assigned to those navies, anexamination of the trends over time in the relative numbers of ships can shed some light on how
the relative balance of U.S. and Chinese naval capabilities might be changing over time.

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Appendix B. U.S. Navy’s Ability to Counter
Chinese ASBMs and Hypersonic Weapons
This appendix provides additional discussion of the issue of the U.S. Navy’s ability to counter
China’s ASBMs and hypersonic weapons.

Ability to Counter ASBMs
Although China’s ASBMs, as a new type of weapon, might be considered “game changers,” that
does not mean they cannot be countered. There are several potential approaches for countering an
ASBM that can be imagined, and these approaches could be used in combination. ASBMs are not
the first “game changer” that the Navy has confronted; the Navy in the past has developed
counters for other new types of weapons, such as ASCMs, and is likely exploring various
approaches for countering ASBMs.
Countering China’s projected ASBMs could involve employing a combination of active (i.e.,“hard-kill”) measures, such as shooting down ASBMs with interceptor missiles, and passive (i.e.,“soft-kill”) measures, such as those for masking the exact location of Navy ships or confusing
ASBM reentry vehicles. Employing a combination of active and passive measures would attack
various points in the ASBM “kill chain”—the sequence of events that needs to be completed tocarry out a successful ASBM attack. This sequence includes detection, identification, andlocalization of the target ship, transmission of that data to the ASBM launcher, firing the ASBM,
and having the ASBM reentry vehicle find the target ship.
Attacking various points in an opponent’s kill chain is an established method for countering an
opponent’s military capability. A September 30, 2011, press report, for example, quotes
Lieutenant General Herbert Carlisle, the Air Force’s deputy chief of staff for operations, plans,
and requirements, as stating in regard to Air Force planning that “We’ve taken [China’s] killchains apart to the ‘nth’ degree.”166
To attack the ASBM kill chain, Navy surface ships, for example, could operate in ways (such as
controlling electromagnetic emissions or using deception emitters) that make it more difficult for
China to detect, identify, and track those ships.167 The Navy could acquire weapons and systems
for disabling or jamming China’s long-range maritime surveillance and targeting systems, forattacking ASBM launchers, for destroying ASBMs in various stages of flight, and for decoying
and confusing ASBMs as they approach their intended targets. Options for destroying ASBMs in
166 David A. Fulghum, “USAF: Slash And Burn Defense Cuts Will Cost Missions, Capabilities,” Aerospace Daily &Defense Report, September 30, 2011: 6.
167 See, for example, also Nick Danby, “Carrier Strike Groups Should Be Ready to Go Dark in Conflict,” War on theRocks, August 29, 2023. For a journal article discussing actions by the Navy during the period 1956-1972 to conceal
the exact locations of Navy ships, see Robert G. Angevine, “Hiding in Plain Sight, The U.S. Navy and Dispersed
Operations Under EMCON, 1956-1972,” Naval War College Review, Spring 2011: 79-95. See also Jonathan F.
Sullivan, Defending the Fleet From China’s Anti-Ship Ballistic Missile: Naval Deception’s Roles in Sea-Based Missile
Defense, A Thesis submitted to the Faculty of the Graduate School of Arts and Sciences of Georgetown University inpartial fulfillment of the requirements for the degree of Master of Arts in Security Studies, April 15, 2011, accessed
October 5, 2023, at https://repository.library.georgetown.edu/handle/10822/553587; Jon Solomon, “Deception and the
Backfire Bomber: Reexamining the Late Cold War Struggle Between Soviet Maritime Reconnaissance and U.S. NavyCountertargeting,” Information Dissemination (www.informationdissemination.net), October 27, 2014; John Solomon,“Deception and the Backfire Bomber, Part II,” Information Dissemination (www.informationdissemination.net),
October 28, 2014; John Solomon, “Deception and the Backfire Bomber, Part III,” Information Dissemination(www.informationdissemination.net), October 29, 2014; John Solomon, “Deception and the Backfire Bomber, Part IV,”
Information Dissemination (www.informationdissemination.net), October 30, 2014.

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flight include the SM-3 midcourse BMD interceptor missile (including the new Block IIA
version) and the SM-6 terminal-defense BMD interceptor missile.168 Options for decoying andconfusing ASBMs as they approach their intended targets include equipping ships with systems,
such as electronic warfare systems or systems for generating radar-opaque smoke clouds or radaropaque carbon-fiber clouds, that could confuse an ASBM’s terminal-guidance radar.169
An October 4, 2016, press report states the following:
Several times in the past, [Chief of Naval Operations John] Richardson has stressed thatlong range weapons developments from adversarial nations like Russia and China aren't
the end-all, be-all of naval conflicts.
Just because China’s “carrier-killer” missile has a greater range than the planes aboard a
US aircraft carrier doesn't mean the US would shy away from deploying a carrier withinthat range, Richardson has stated on different occasions.
Again, Richardson challenged the notion that a so-called A2/AD zone was “animpenetrable keep out zone that forces can only enter at extreme peril to their existence,
let alone their mission.”
Richardson took particular issue with the “denial” aspect of A2/AD, repeating his assertion
that this denial is an “aspiration” not a “fait accompli.” The maps so common in
representing these threats often mark off the limits of different system’s ranges with “redarcs that extend off coastlines,” with the implication that military forces crossing theselines face “certain destruction.”
But this is all speculation according to Richardson: “The reality is far more complex, it’s
actually really hard to achieve a hit. It requires the completion of a really complex chain of
events.... these arcs represent danger for sure... but the threats they are based on are notinsurmountable, and can be managed, will be managed.”“We can fight from within these defended areas, and we will... this is nothing new and has
been done before,” said Richardson.
So while Russia and China can develop missiles and radars and declare their ranges on
paper, things get a lot trickier in the real world, where the US has the most and bestexperience in operating.
“Potential adversaries actually have different geographic features like choke points,
islands, ocean currents, mountains,” said Richardson, who urged against oversimplifying
complicated, and always unique circumstances in so-called A2/AD zones.
“Have no doubt, the US navy is prepared to go wherever it needs to go, at any time, andstay there for as long as necessary in response to our leadership’s call to project our
strategic influence,” Richardson concluded.

Similarly, an August 29, 2016, press report states the following:

168 For more on the SM-3, including the Block IIA version, and the SM-6, see CRS Report RL33745, Navy Aegis

Ballistic Missile Defense (BMD) Program: Background and Issues for Congress, by Ronald O'Rourke.
169 Regarding electronic warfare, see, for example, Brett Tingley, “The Navy’s Secretive And Revolutionary Program
To Project False Fleets From Drone Swarms,” The Drive, November 7, 2019. Regarding the option of systems forgenerating radar-opaque smoke clouds, Thomas J. Culora, “The Strategic Implications of Obscurants,” Naval War
College Review, Summer 2010: 73-84; Scott Tait, “Make Smoke!” U.S. Naval Institute Proceedings, June 2011: 58-63.
Regarding radar-opaque carbon-fiber clouds, see “7th Fleet Tests Innovative Missile Defense System,” Navy News
Services, June 26, 2014; Kevin McCaney, “Navy’s Carbon-Fiber Clouds Could Make Incoming Missiles Miss Their
Targets,” Defense Systems (http://defensesystems.com), June 27, 2014. See also Sydney J. Freedberg Jr., “Cyber, EW
Are Secret Missile Defense Weapons Too Secret To Use,” Breaking Defense, December 4, 2015.

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The United States Navy is absolutely confident in the ability of its aircraft carriers andcarrier air wings to fly and fight within zones defended by so-called anti-access/area denial(A2/AD) weapons....
In the view of the U.S. Navy leadership, A2/AD—as it is now called—has existed since
the dawn of warfare when primitive man was fighting with rocks and spears. Overtime,
A2/AD techniques have evolved as technology has improved with ever-greater range andlethality. Rocks and spears eventually gave way to bows and arrows, muskets and cannons.
Thus, the advent of long-range anti-ship cruise and ballistic missiles is simply anothertechnological evolution of A2/AD.
“This is the next play in that,” Adm. John Richardson, chief of naval operations, told The
National Interest on Aug. 25 during an interview in his office in the Pentagon. “ThisA2/AD, well, it’s certainly a goal for some of our competitors, but achieving that goal ismuch different and much more complicated.”
Indeed, as many U.S. Navy commanders including Richardson and Rear Adm. (Upper
Half) DeWolfe Miller, the service’s director of air warfare, have pointed out, anti-accessbubbles defended by Chinese DF-21D or DF-26 anti-ship ballistic missile systems or
Russian Bastion-P supersonic anti-ship missile systems are not impenetrable ‘Iron Domes.’
Nor do formidable Russian and Chinese air defense systems such as the S-400 or HQ-9
necessarily render the airspace they protect into no-go zones for the carrier air wing.
Asked directly if he was confident in the ability of the aircraft carrier and its air wing tofight inside an A2/AD zone protected by anti-ship cruise and ballistic missiles as well as
advanced air defenses, Richardson was unequivocal in his answer. “Yes,” Richardson
said—but he would not say how exactly how due to the need for operational security. “It’sreally a suite of capabilities, but I actually think we’re talking too much in the open aboutsome of the things we’re doing, so I want to be thoughtful about how we talk about things
so we don’t give any of our competitors an advantage.”...
Miller said that there have been threats to the carrier since the dawn of naval aviation. In
many ways, the threat to the carrier was arguably much greater during the Cold War when
the Soviet Union massed entire regiments of Tupolev Tu-22M3 Backfires and deployedmassive cruise missile-armed Oscar-class SSGN submarines to hunt down and destroy the
Navy’s flattops. The service developed ways to defeat the Soviet threat—and the carrier
will adapt to fight in the current environment.
“We could have had this interview twenty-years-ago and there would have been a threat,”
Miller said. “The nature of war and A2/AD is not new—that’s my point. I don’t want to
downplay it, but our improvements in information warfare, electronic warfare, payloads,
the weapons systems that we’ve previously talked about—plus our ability to train to thosecapabilities that we have—we will create sanctuaries, we’ll fight in those sanctuaries andwe’re a maneuver force.”170

An October 18, 2017, blog post states the following:
Assuming the DF-21D is ready for battle, can America defend against China’s mighty
missile?
While opinions are clearly mixed—in speaking to many sources over the last several years
on this topic—it seems clear there is great nervousness in U.S. defense circles. However,as time has passed, initial fears have turned towards a more optimistic assessment....

170 Dave Majumdar, “Chief of Naval Operations Richardson: US Aircraft Carriers Can Fight Inside A2/AD Zones,”

National Interest, August 29, 2016. See also Ryan Pickrell, “Navy Admirals Brush Aside Biggest Worry Of Modern
Naval Combat,” Daily Caller, August 31, 2016; Dave Majumdar, “Here Is Why the US Military Is Not In Panic Mode
Over China’s Carrier-Killer Missiles,” National Interest, June 20, 2016.

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In the end, the weapon might not be the great “game-changer” that many point it out to be,
but a great complicator.171

A January 28, 2021, press report states
The U.S. Navy’s top intelligence officer has said the service is watching closely as China
expands its anti-ship missile capabilities, particularly in and around the disputed South
China Sea, to include the ongoing development of long-range anti-ship ballistic missiles.
At the same time, he said he “hopes” that China’s People’s Liberation Army will continue
to invest significant resources into these efforts, hinting that the U.S. Navy already has
extensive measures to counter these threats already in use now or in development.
Navy Vice Admiral Jeffrey Trussler, the Deputy Chief of Naval Operations for Information
Warfare, made his remarks about China’s anti-ship missile arsenal during an online event
put on by the non-profit Intelligence and National Security Alliance on Jan. 27, 2021….
… not only did Vice Admiral Trussler seem less concerned about PLA anti-ship missile
capabilities than one would expect, he made clear he was happy with them continuing topour time and resources into those efforts.
“I hope they just keep pouring money into that type of thing,” he said. “That may not be
how we win the next war.”
The clear indication here is that Trussler is aware of countermeasures, whether they becertain systems or tactics, techniques, and procedures, that are either available now or indevelopment. The Vice Admiral did not offer any specific details about what the Navy isdoing to go along with these remarks….
We also know that, by 2019, warships assigned to the Navy’s 7th Fleet, which is based inJapan, were fitted with the AN/SLQ-59 Transportable Electronic Warfare Modules(TEWM). TEWM is described as a “counter-terminal threat defensive system,” indicatingthat it is designed to help defeat incoming anti-ship missiles, or other threats, such as
swarms of small drones, in the final phase of their attack on a ship. Based on theinformation available, The War Zone previously assessed that the AN/SLQ-59 was most
likely acquired in response to growing cruise missile threats, and Chinese developments,
in particular, given its fielding first on ships forward-deployed in Japan.
The Navy has also been hard at work developing an entire networked electronic warfare“ecosystem,” as part of its shadowy Netted Emulation of Multi-Element Signature against
Integrated Sensors program, or NEMESIS. The goal here has been to craft a ‘system ofsystems’ comprising of various manned and unmanned ships, as well as submarines andaircraft, equipped with electronic warfare systems that can work together cooperatively.
One of the key uses of these capabilities would be to generate signals that mimic real fleetsof ships and aircraft to distract and confuse opponents, making it difficult for them toeffectively spot and target real Navy assets. These networked electronic warfare platforms
could also employ other kinds of electronic warfare tactics across a broad area to protect
against various kinds of threats. You can read more about NEMSIS in detail in this past
War Zone feature.172
A highly adaptive and deeply networked electronic warfare ecosystem could be particularly
useful against long-range anti-ship missile strikes, especially using ballistic missiles, which

171 Harry J. Kazianis, “Could China’s Aircraft Carrier Killer Missiles ‘Sink’ the U.S. Navy?” National Interest, October18, 2017. See also Dick Mosier, “Breaking the Anti-Ship Missile Kill Chain,” Center for International Maritime
Security, February 26, 2018; Richard A. Bitzinger, “The Myth of the ‘Game-Changer’ Weapon,” Asia Times, April 26,
2018.
172 The article linked at this point is Brett Tingley, “The Navy’s Secretive And Revolutionary Program To Project False
Fleets From Drone Swarms,” The Drive, November 7, 2019.

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would require targeting information from offboard platforms and the ability to send
updated information to the weapon during the mid-course stage of flight….
The Navy does have Arleigh Burke class destroyers outfitted specifically for ballistic
missile defense, including the ability to launch the SM-3 Block IIA interceptor, which isdesigned to knock down ballistic missiles during the mid-course portion of their flight.
Those ships are also slated to get interceptors designed to bring down hypersonic weapons
in the future as part of the Regional Glide Phase Weapon System (RGPWS) program….
The Navy, which has been looking to stop deploying Arleigh Burkes on dedicated missile
defense missions, could seek to make more widespread use of the SM-3 Block IIA in the
future. Those destroyers and other ships could gain additional missile defense capabilities
as the improved Block IB variant of the SM-6 missile begins to enter service. Existing
Block I and IA versions of the SM-6 already have the ability to intercept ballistic missiles
during the terminal phase of their flight, as well as engage various other aerial and surface
threats. The SM-6, in particular, potentially provides a potent defense against anti-shipballistic missiles, especially those that break through mid-course traditional ballistic
missile defenses, if mid-course ballistic missile defense assets are available at all.
There’s the possibility that Vice Admiral Trussler is aware of other developments in theclassified realm that could further mitigate some or all of these threats, as well. Beyond
that, there’s no discounting that his public comments, which are certain to be scrutinizedby the PLA itself, are a form of misinformation designed to prompt concerns within the
Chinese military that its priorities may be, in some way, seriously off base.
Whatever the case, the threat posed by China’s anti-ship missile arsenal, which continues
to grow in capability, including with the development of new anti-ship ballistic missiles, isreal. At the same time, while the Navy obviously knows this, the service seems to bestrongly hinting that it feels it making very good progress on getting around thesechallenges, or at least wants to make the Chinese think so.173

Regarding the above-reported remarks by Vice Admiral Trussler, a January 29, 2021, press reportstatedThat confident [U.S. Navy] posture caught the attention of the Chinese military
establishment. “What Trussler is saying is that the U.S. has sufficient power to handle theanti-ship missile threat from China,” former People’s Liberation Army instructor Song
Zhongping told the South China Morning Post on Friday [January 29]. “The U.S. isemphasizing that threat and it will further boost its defenses against Chinese missiles.”174

Ability to Counter Hypersonic Weapons
Another CRS report provides a brief survey of DOD (including Navy) efforts for developing
defenses against hypersonic weapons.175

173 Joseph Trevithick, “Top Navy Intel Officer Hopes China Will Keep Dumping Money Into Anti-Ship Ballistic

Missiles, The Navy Is Strongly Hinting that It Feels It Is Well on Its Way to Mitigating the Very Real Threats Posed by
Anti-Ship Ballistic and Cruise Missiles,” The Drive, January 28, 2021. See also Mallory Shelbourne, “U.S. Admiral:
China Can ‘Keep Pouring Money’ Into Anti-Ship Ballistic Missiles,” USNI News, January 27, 2021.
174 Joel Gehrke, “China’s ‘Carrier Killer’ and Military Won’t ‘Win the Next War,’ US Admiral Says,” Washington
Examiner, January 29, 2021. The South China Morning Post article being cited is Teddy Ng and Minnie Chan, “USAdmiral Calls China’s Anti-Ship Ballistic Missiles a ‘Destabilising Effort’ that May Not Win a War,” South China
Morning Post, January 29, 2021. See also Kris Osborn, “Could the US Navy Destroy Attacking Chinese ‘CarrierKiller’ DF-26 Anti-Ship Missiles?” Warrior Maven, October 11, 2022.
175 CRS In Focus IF11623, Hypersonic Missile Defense: Issues for Congress, by Kelley M. Sayler.

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Regarding the Navy efforts to develop capabilities for countering hypersonic weapons, at a May
9, 2023, hearing on missile defense programs before the Strategic Forces subcommittee of the
Senate Armed Services Committee, the Director of the Missile Defense Agency (MDA) stated
MDA plans to conduct a Tracking Exercise, Flight Test Other (FTX)-23, with two [U.S.
Navy] Aegis ships to perform target scene data collection of an MRBM withcountermeasures. We will also demonstrate Aegis SBT [sea-based terminal defense] witha salvo engagement in Flight Test Aegis Weapon System (FTM)-32, firing two (salvo)
SM-6 Dual II software upgrade guided missiles against a MRBM [medoum-range ballistic
missile]. In FTX-40 we will fire a simulated SM-6 missile against a hypersonic glide
vehicle....
We also are developing a layered defense capability against regional hypersonic threats
and have initiated a development program for a Glide Phase Interceptor [GPI], leveraging
existing systems where possible, including proven engage-on-remote and launch-onremote capabilities. We are focusing on the proven Aegis Weapon System to provide thedepth-of-fire needed for a layered defense against hypersonic threats. In FY 2024, MDA
will continue to develop and mature the GPI capability and leverage the Aegis Weapon
System. Today, MDA already provides the Navy an initial terminal defense capability. We
also are working closely with the Navy to develop, field, and upgrade SBT defenses tocounter more advanced maneuvering and hypersonic threats. We anticipate delivering
these Increment 3 capabilities in 2025. In FY 2024, Aegis SBT will demonstrate an
engagement against an advanced target in the terminal phase (FTM-32) and a simulated
engagement against a hypersonic glide vehicle (FTX-40). In FY 2025, SBT Increment 3
will demonstrate an engagement against a hypersonic glide vehicle firing an SM-6 Block
IAU missile (FTM-43).176

Author Information
Ronald O'Rourke
Specialist in Naval Affairs

176 [Statement of] Vice Admiral Jon A. Hill, USN, Director, Missile Defense Agency, Before the House [sic: Senate]

Armed Services Committee Strategic Forces Subcommittee, May 9, 2023, pp. 8, 10-11. See also Rich Abott, “MDA
Sees Counter-Hypersonic Ability In Present Missiles, Multi-Year SM-6 Order For Salvo Defense,” Defense Daily, May
10, 2023; Rich Abott, “Northrop Grumman And Raytheon Nab More Contract Mods To Refine Hypersonic Defense
Concepts,” Defense Daily, May 1, 2023; Brent M. Eastwood, “China’s DF-17 Hypersonic Missile: How To Kill An
Aircraft Carrier?” 19FortyFive, January 20, 2023; Jen Judson, “Raytheon, Northrop Advance in Competition to
Develop Hypersonic Weapons Interceptor,” Defense News, June 24, 2022. See also Jason Sherman, “MDA Selects
Raytheon, Northrop to Advance in GPI Design Contest; Lockheed Sidelined,” Inside Defense, June 24, 2022; AndrewEversden, “Northrop, Raytheon Selected to Continue Work on Hypersonic Missile Interceptor,” Breaking Defense,
June 27, 2022; Rich Abott, “Raytheon And Northrop Grumman Win Mods To Continue Refining Hypersonic Defense
Concepts,” Defense Daily, November 16, 2022.
For more on the Aegis ballistic missile defense (BMD) program, see CRS Report RL33745, Navy Aegis Ballistic
Missile Defense (BMD) Program: Background and Issues for Congress, by Ronald O'Rourke.

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