According to the Summary of the 2018 National Defense Strategy and the Army, the character of warfare is changing. For decades, the United States enjoyed uncontested or dominant superiority in every operating domain—land, air, sea, cyber, and space—but today every domain is likely to be contested by other great-power competitors and potential regional adversaries. Figure 1 below describes these operating domains. Since at least 2012, DOD began shifting its focus from counterinsurgency operations in Iraq and Afghanistan to adversaries who possess more sophisticated capabilities. For example: In 2012, DOD issued strategic guidance that cited efforts by Iran and China to pursue cyber and electronic warfare capabilities with the ability to counter U.S. power projection and limit operational access. The 2014 Quadrennial Defense Review acknowledged the efforts of China and others to counter U.S. strengths using anti-access and area-denial approaches and using new cyber and space control technologies. The 2014 Quadrennial Defense Review also addressed the rapid evolution of modern warfare, including increasingly contested battlespaces in the air, sea, space and cyber domains. In 2016, an Army study of Russia’s operations and doctrine concluded that Russia employs formations, operational concepts, and capabilities that overmatch U.S. capabilities in range and lethality, thus challenging the Army’s ability to conduct operations and win battles. The 2017 National Security Strategy stated that U.S. advantages are shrinking as rival states modernize their forces. The 2017 National Security Strategy identified many of the challenges that China and Russia pose, including Russia’s use of offensive cyber efforts to influence public opinion, and how cyberattacks have become a key feature of modern warfare. A classified National Defense Strategy followed in January 2018, and the unclassified summary cited challenges to the U.S. military advantage as a shift in the global environment. The Army’s multi-domain operations concept originates from an Army effort to rethink how it will fight in the new, more complex operating environment. The Army defines multi-domain operations as ways for confronting adversaries in contested environments by presenting them with multiple challenges through the combining of multiple capabilities. This means that ground forces should be able to operate freely in other warfighting domains and, if necessary, be able to overwhelm an adversary’s forces by combining capabilities across different domains, such as land, air, sea, cyber, and space simultaneously. According to Army officials, in 2014 the then-Deputy Secretary of Defense tasked the Army to update its warfighting concept to deal with the threats and challenges posed by great-power competitors in the future operating environment. The Army officials added that around the same time, the Army began developing and running a wargame scenario focused on a threat that employed similar doctrine, tactics, and capabilities as those used by Russia in Ukraine. In 2016, the Army also assessed the increasingly sophisticated Russian military capabilities and identified specific multi-domain challenges that the Army would face if it came into conflict with Russia. Army officials said that its analysis highlighted the urgency of updating how it would fight such an adversary. In beginning to develop this concept, the Army reached out to the Marine Corps, as both services face similar problems in ground-combat operations. Since the Army began developing its concept, the Army established a framework for assessing how the adversary operates and the problems the Army needs to resolve as a ground force. For example, early on the Army developed an expanded battlefield that stretches far beyond the front lines, or “close area”, where ground forces face off against each other. Under this expanded battlefield, adversaries can use more sophisticated weapons and cyber capabilities that are based in distant and protected territories, potentially reaching targets that are located well behind the front lines, even within the continental United States. Figure 2 below depicts the Army’s new expanded battlefield for multi-domain operations, including a description of each area of the battlefield. The Army is changing aspects of its doctrine, organizations, and training simultaneously to develop a force that can effectively engage great-power competitors, such as Russia and China, across multiple domains, and expects this process to continue through the 2020s. Army concepts propose new approaches for the Army to develop capabilities against emerging challenges. The new Army Operating Concept built around multi-domain operations is intended to drive capability development, which is addressed through changes to the Army’s doctrine, organizations, and training, among other areas. The Army’s goal is to field a more lethal and capable force by 2028 that is able to dominate adversaries in a multi-domain environment. Figure 3 below summarizes how the Army uses validated concepts to drive changes in capabilities and the force. Doctrine. Given the Army’s attention to multi-domain operations, it has updated or is in the process of updating doctrine that guides how the Army fights. Primary among this effort is updating the Army’s overarching operations field manual, which establishes how the Army conducts large- scale ground combat operations against the threat posed by a great- power competitor, among other things. In its most recent revision to its doctrine, the Army incorporated several aspects of multi-domain operations, such as the expanded battlefield that includes cyber and the electromagnetic spectrum. TRADOC officials stated that they are also in the process of updating doctrine related to cyber operations and field artillery operations in order to build a force that can integrate both cyber capabilities and long-range fires—such as artillery, rockets, and missiles—for multi-domain operations. The officials added that the Army is developing or is planning to develop specific doctrinal guidance for new Army units that will focus on multi-domain operations in the areas of intelligence, cyber, electronic warfare, and space. Organizations. The Army wants to ensure that its warfighting organizations have the engineering, artillery, air defense, and other enabling capabilities needed to conduct multi-domain operations. For example, the Army believes that formations above the brigade level, such as division headquarters and corps headquarters, must have the ability to conduct electronic warfare and cyber operations. To that end, the Army is creating several new organizations focused on cyber and electronic warfare (discussed later in the report). Additionally, the Army is trying to align its multi-domain operations concept with a complementary concept focused on the roles and responsibilities of these organizations above the brigade level. Expanding the roles and responsibilities of formations above the brigade level signifies a departure from the Army’s modular force, which was implemented beginning in 2004. At that time, the Army embedded “key enablers” such as military intelligence, reconnaissance, and logistics functions, as well as other specialized personnel and equipment, into brigade combat teams to provide them independent capabilities. Moving forward, the Army envisions enhancing the capabilities of brigade combat teams for multi-domain operations, as well as providing additional key capabilities to formations above the brigade level. For example: Brigade combat teams. Brigade combat teams are the Army’s primary tactical unit, composed of around 4,400-4,700 soldiers. They are being adjusted to conduct operations in the cyber domain, including new platoons focused on electronic warfare. Army division headquarters. Army divisions command multiple brigade combat teams. The Army expects division headquarters to manage the electromagnetic spectrum and to be the primary echelon for integrating aviation, fires, and electronic warfare into ground maneuver to defeat enemies in a close fight. Army corps headquarters. Army corps command multiple divisions. Under the Army’s concept, the Army corps headquarters will be the primary echelon for defeating mid- and long-range enemy artillery fires. The Army corps will also integrate artillery rockets and missiles, as well as cyber capabilities in support of division or brigade ground operations. Field armies. Field armies, which have the ability to command two or more Army corps, are forward-stationed in regions with capable threats posed by great-power competitors. They will conduct campaigns to compete with adversaries short of armed conflict, and manage the transition to armed conflict should it be needed. The field army will also direct deception operations and provide long-range artillery and fires support. Theater armies. Theater armies are also forward-stationed forces and will be responsible for managing and combining Army capabilities in support of information environment operations and space operations. The theater army must be able to protect joint bases and networks and enable access to the theater. Training. The Army is also updating its training across a broad range of efforts. Army training officials stated that there is a need to train units collectively under multi-domain operations conditions against great-power competitors like Russia and China, per guidance from the Chief of Staff of the Army. The commander of Army Forces Command also issued guidance for fiscal year 2019 to help train and prepare soldiers to conduct multi-domain operations. This guidance included increasing the realism and rigor of every unit rotation to one of the Army’s combat training centers, as well as designing warfighter exercises that focus on units conducting operations in contested electronic warfare, cyber, and space environments. Additionally, the training officials stated that in recent years the Army has updated its decisive-action training scenarios to include regional versions for Europe, the Pacific, and Africa that comply with the multi-domain operations concept. The officials added that, in future years, several Army organizations will be collaborating to modernize the Army’s home-station training and combat training centers in support of fielding a force capable of conducting multi-domain operations. All of this builds upon the Army’s earlier efforts to shift its training focus to large-scale combat after a decade of training for counterinsurgency operations, as we testified to Congress in February 2019. The Army is also taking steps to revise the training for cyber and electronic warfare personnel. These steps include revising the U.S. Army Cyberspace Operations Training Strategy so that it accounts for new equipment and doctrine, but also for the new organizations being created and the tasks those units will be expected to perform, according to Army cyber officials. Additionally, the Army Cyber School is revising its cyber and electronic warfare training so that personnel will be able to conduct multi-domain operations. Furthermore, the Army is working on a joint solution for training cyber personnel on behalf of U.S. Cyber Command, according to Army Cyber Command officials. The Army’s goal is to provide the total cyber force with the ability to conduct joint cyber training, including exercises and mission rehearsals by developing a virtual training environment that simulates realistic cyber threats. This cyber training solution, called the Persistent Cyber Training Environment, will allow for experimentation, unit certification, and assessment and development of the cyber mission force in a virtual training environment. The Army’s goal is that the environment will decrease training time, increase throughput of personnel, and improve training quality. One of the stated operational imperatives of the Persistent Cyber Training Environment is to become integrated with multi-domain exercises. The Army is seeking to quickly create or design several new cyber and electronic warfare units in order to execute multi-domain operations; however, Army leadership is activating some units at an accelerated pace due to the sense of urgency imposed by the growing capabilities of potential great-power competitors. Some of these new Army units are more narrowly focused on a particular domain or skill set, such as the recently activated 915th Cyber Warfare Support Battalion based out of Fort Gordon, Georgia, and new Electronic Warfare Companies and platoons. The 915th Cyber Warfare Support Battalion will focus on providing offensive cyber capabilities consistent with its authorities to conduct offensive operations. The battalion is designed to fit with various Army formations—such as corps, divisions, or brigade combat teams—as assigned by the Army. The Electronic Warfare Companies, which are scheduled to be fielded during fiscal years 2023 through 2025 according to Army officials, will be attached to an Army corps and will be capable of planning and conducting electronic warfare operations. Electronic Warfare platoons, which Army officials said are scheduled to be fielded during fiscal years 2020 through 2022, will provide similar capabilities to brigade combat teams and other Army tactical-level formations. Other units are being designed to plan and conduct operations in and across multiple domains, with specialists in cyber, electronic warfare, space, and intelligence assigned to the same unit. For example, a recently activated Intelligence, Cyber, Electronic Warfare, and Space (ICEWS) unit will be capable of planning and directing operations in any or all of those areas. The ICEWS unit will function as part of a larger Multi-Domain Task Force, which will be capable of expanding those operations into other domains such as land and air. The Army plans to field at least two of these ICEWS units by the end of fiscal year 2020. Additionally, the Army is restructuring or creating Cyber, Electromagnetic Activities planning sections in the headquarters of more than 125 Army formations, from special forces units up to theater-level Army headquarters. This restructuring effort will take place during fiscal years 2020 through 2022, according to Army officials. Army guidance states that a unit’s activation date should be identified 1 to 2 years in advance, according to Army officials, in order to provide time to build up trained personnel and equipment in the unit before it is activated and available to be deployed. As a result of accelerating the activation of these units, the Army is facing interrelated challenges in terms of staffing, equipping, and training the units, as discussed below. Accelerated pace creates challenges filling positions. The Army has had difficulty filling its ICEWS unit and the 915th Cyber Warfare Support Battalion with personnel to conduct operations. See table 1 below. By accelerating the activation of the ICEWS unit in October 2018 as a pilot, or test, program, the Army activated the unit with only 32 percent of its personnel in place, and Army headquarters officials report that filling the unit with personnel with the right skills has been a slow process. The 915th Cyber Warfare Support Battalion is facing similar staffing challenges. As of the end of March 2019, the unit was understaffed by more than 80 percent as it filled 30 of 171 authorized positions for fiscal year 2019, according to an Army headquarters official. The official acknowledged that the 915th Cyber Warfare Support Battalion may not meet the authorized staffing levels for fiscal year 2019 if higher priorities arise for the service. Looking ahead, Army officials said that filling all of these new cyber and electronic warfare units could be challenging because cyber personnel are in high demand, with competition for these skilled personnel existing between the Army, other government entities, and the private sector. Army headquarters officials said they are exploring options to address the challenges and have taken steps to retain the personnel that they have, mostly in the form of retention bonuses and incentive pay. Some of those incentives are targeted at the senior enlisted levels, which are some of the personnel that Army officials indicated are in the most demand and of which they have a shortage. Accelerated pace creates equipping challenges. Officials with both Army headquarters and the Army Cyber School cited equipment challenges as one of the key issues that must be addressed when activating a unit on an accelerated basis. For example, in November 2018, an Army headquarters’ official responsible for building the ICEWS unit stated that the Army was having a difficult time identifying where the unit’s equipment would be coming from. By the end of January 2019, the official said the situation was improving and that 55 percent of the equipment had been identified, but the Army was trying to find a source for the remaining 45 percent. However, most of this is common Army equipment, such as firearms, according to an Army official; those percentages do not include the specialized cyber equipment that the unit will need to perform its missions, such as a communications system designed to transfer data beyond the line of sight during air defense operations. An Army headquarters’ official stated that the Army is prototyping different types of specialized equipment in order to expedite the acquisition of such capabilities. Revisions to training not keeping up with activation of units. Army officials acknowledged the need to update its cyber training, in part because the doctrine for new units is still being written. Officials with the Army Cyber School and the Army’s Combined Arms Center stated that the current U.S. Army Cyberspace Operations Training Strategy did not foresee all of the new cyber and electronic warfare organizations the Army now intends to create, including the Cyber Electromagnetic Activities sections attached to various formations. Army headquarters officials stated that they are working on a revision to the U.S. Army Cyberspace Operations Training Strategy to address these issues. However, the first ICEWS unit and the 915th Cyber Warfare Support Battalion were activated without this updated training strategy. With other units scheduled to be activated in fiscal year 2020, it is possible others may be activated without the training strategy as well. Without the updated doctrine and subsequent training strategies that will result from it, TRADOC officials said they would have difficulty designing training for the new units, and soldiers will not have a clear understanding of their tasks and missions. Obtaining equipment also could be a challenge for training servicemembers before they are assigned to cyber or electronic warfare units, according to some Army officials. Officials with the Army Cyber School stated that it could end up growing and producing a workforce that outpaces its ability to procure equipment. However, Army headquarters’ officials stated that equipping operational units is a higher priority than providing equipment to the schools for training, and the Army ensures that those units receiving the equipment get the training they need upon fielding the equipment. If the Army does not acquire new equipment quickly enough, the result could be that soldiers in the Army Cyber School will be trained on outdated equipment, which they will not use when they get to the field. In the process of creating some new units, the Army assessed the risk of whether it can meet the units’ staffing, equipping, and training requirements before the units’ activation date, but it did not do so for those units activated at an accelerated pace. For example, the Army conducted risk assessments for some new Electronic Warfare platoons and Cyber Electromagnetic Activities sections that it plans to begin activating in fiscal year 2020. Those assessments identified issues and mitigation strategies for the Army to consider when making fielding and resource decisions. For example, the risk of finding a sufficient number of qualified personnel for the Electronic Warfare platoons and Cyber Electromagnetic Activities sections would be mitigated by spreading the activations over a minimum of 3 years. The assessment for the Electronic Warfare platoons also identified some equipping issues that will require either more senior-level input or extending timeframes for completion. In contrast, the Army activated the ICEWS unit and the 915th Cyber Warfare Support Battalion in an accelerated manner because of the urgent need to develop these organizations, given the growing capabilities of potential great-power competitors. However, the Army did so without completely assessing the staffing, equipping, and training risk to those units over the long term. For example: According to Army officials, the Army did not perform a risk assessment for the ICEWS unit currently assigned to and participating in exercises in the Pacific, because the Army initiated the unit as a pilot, or test, program. According to Army officials, a risk assessment was unnecessary prior to activating the unit because the Army expects to refine the unit’s personnel, equipping, and training requirements during the pilot program. However, the ICEWS unit is expected to become part of a larger Multi-Domain Task Force in fiscal year 2020. Until that occurs, the ICEWS unit is attached to another active Army unit and, according to Army officials, eligible to be deployed if needed based on its current capabilities. Unless the Army assesses the staffing, equipping, and training risks of the ICEWS unit, the unit may be unable to provide the expected capabilities, either currently or as part of the larger task force to which it will belong. The Army performed an initial risk assessment for the 915th Cyber Warfare Support Battalion before the unit was activated in December 2018. However, Army officials told us that the Army has plans to grow the unit to as many as 627 personnel by 2024, at which point it would be considered fully operational. Unless the Army performs a more complete risk assessment of the 915th Cyber Warfare Support Battalion’s staffing, equipping, and training requirements prior to achieving full operational capability, the Army may be poorly positioned to make decisions about how to use and support the battalion. Army guidance states that the Army should assess its ability to support a new unit’s staffing, equipping, and training requirements, among other things, so that senior Army leaders can evaluate proposed organizational changes. For example, under a force integration functional area analysis, the Army staff evaluates all proposed organizational changes to ensure that they meet the intent of senior Army leaders, have the resources available to accomplish their mission, and that their projected benefits justify increased resources. These assessments analyze the proposed organization in nine areas, such as staffing, structuring, equipping, and training, and are intended to give senior Army leaders an understanding of whether the organizations are affordable, supportable, and sustainable. According to Army officials, the force integration functional area analysis is similar to a risk assessment. In addition, Standards for Internal Control in the Federal Government state that management should identify, analyze, and respond to the risks related to achieving the defined objective—in this case quickly fielding a cyber force to deal with current threats. Because the Army has not completely assessed the risk of organizing the ICEWS unit and the 915th Cyber Warfare Support Battalion, senior Army leaders may be left with an incomplete picture of the challenges in affording, supporting, and sustaining these units over the long term. Moreover, senior Army leaders lacked key information needed to understand the capability and capacity of the units at the time they were activated. For example, these units currently do not have what they need in terms of personnel and equipment to conduct their missions successfully. Further, according to some Army officials, without such an assessment, the Army does not know whether accelerated activation was the best course of action; what challenges they may face in staffing, equipping, and training the units; or how to mitigate challenges that may arise in other areas, such as deploying and sustainment. Army officials stated that there is a lot of informal discussion between relevant Army offices to try to identify and deal with challenges for these units. However, they also acknowledged the problems inherent in activating a unit by accelerating timelines. Such risk assessments also could inform future Army decisions as it activates new units for multi-domain operations. Given the Army’s perception of the threat environment, the Army may decide to activate other multi-domain operations units in an accelerated manner. For example, the Army is exploring ideas for creating several new units in future years to enhance its capability in multi-domain operations, such as a Theater Space Warfare Battalion. The Army also has been running wargames to see how they would operate new types of units at the division, corps, and theater level for commanding and operating long- range missiles and rockets. Army officials stated that as these units grow and evolve, it is uncertain when more comprehensive risk assessments would take place. If the Army does not perform a risk assessment for the activated ICEWS unit before it joins the larger Multi-Domain Task Force, or a more complete risk assessment for the 915th Cyber Warfare Support Battalion as that unit matures, the Army may end up fielding units that are not capable of providing the needed capabilities. Moreover, these risk assessments could provide vital lessons that could inform future Army decisions on the development, activation, and fielding of other units focused on enhancing the Army’s capability to conduct multi-domain operations. The Army engaged with the Joint Staff and other services to develop its Army Operating Concept and envisions opportunities for further coordination in the future. The Army’s overarching objective is to field a multi-domain-capable force by 2028, and it considers further engagement with the Joint Staff and other services as essential to accomplishing that goal. According to Army plans, the Army needs to finalize the next version of its Army Operating Concept by the fall of 2019 in order to incorporate multi-domain operations into all levels of Army leadership, training, and education by 2020. The Army plans indicate that maintaining this schedule is important to have a ready, lethal, and modern force for multi- domain operations by 2028. From the outset, the Army engaged with the Marine Corps to begin its concept development. Together the Army and Marine Corps published a white paper in January 2017 where they unveiled “Multi-Domain Battle” as a new concept for combat operations against a sophisticated great- power competitor. This white paper highlighted the need for ground forces to focus on all five warfighting domains and was intended as a first step toward further multi-domain concept development, wargaming, experimentation, and capability development. Once the white paper was written, the Army engaged with the Joint Staff and the other services in several ways to refine its concept: Joint Staff collaboration. The Army engaged with the Joint Staff on an Army-led study of recent contingency operations and used the lessons to refine the Army Operating Concept’s description of the emerging operational environment. Based on that study, the Army also refined some solutions for addressing threats posed by great- power competitors. Joint Staff officials reported that the Army engaged with the Joint Staff through other collaborative events as well, including tabletop exercises that tested and refined multi-domain concept ideas. Marine Corps collaboration. As the Army moved forward from the white paper, the Marine Corps’ input informed the concept’s development in various ways. This included changing the concept’s title from multi-domain battle to multi-domain operations in April 2018 to better reflect the scope of competition and conflict, as well as the inherent joint nature of modern warfare. The Marine Corps also hosted a multi-domain symposium in April 2018 that was attended by the Army, Air Force, Navy, and Joint Staff. Air Force collaboration. The Army initially collaborated with the Air Force Air Combat Command to inform concept-development efforts, and more recently began working with the Air Force Warfighting Integration Capability under Air Force headquarters. Also, the Army and Air Force collaborated on tabletop exercises focused on simulating multi-domain operations. Army officials told us that this helped them refine their thinking on how to enhance the maneuverability of its land forces by combining Army and Air Force capabilities across domains. Navy collaboration. The Army and Navy principally collaborated by testing multi-domain capabilities during real-world exercises. For example, the Army joined the Navy’s 2018 Naval Rim of the Pacific exercise to demonstrate capabilities for multi-domain operations in a real world environment. While the Army took steps to engage with the Joint Staff and the other services, it made the decision to move forward with the latest version of its Army Operating Concept in order to meet its overarching objective to develop a multi-domain operations-capable force by 2028. Given this urgency, Army officials told us that they may have missed opportunities to further refine its Army Operating Concept in 2018 with the perspectives of the Joint Staff and other military services. Joint Staff officials told us that by not fully including the Joint Staff in some tabletop exercises, the Army may have missed the Joint Staff’s perspective on key issues related to multi-domain operations, such as joint command and control. As the Army continues to revise its Army Operating Concept, the Army recognizes the need to continue to engage with the Joint Staff and other services. Joint Staff officials told us that the Joint Staff has initiated its own plans to engage with the services to refine key ideas of multi-domain operations in joint concepts, including logistics, intelligence, and command and control. Army officials told us that they recognize the importance of not getting too far ahead of these efforts, or the efforts of other services related to multi-domain operations. Army officials told us that the mechanisms built into the Joint concept-development framework would provide opportunities to engage the services and Joint Staff as the Army revises its own concept. Army officials added that beginning in the fall of 2019 the Army will participate with the Joint Staff in a wargame designed, in part, to analyze how the Army Operating Concept works with the other military service operating concepts. As a result, the current concepts are likely to evolve in the future as the Army synchronizes its efforts with those of the Joint Staff and other services. Rising threats posed by great-power competitors, particularly China and Russia, prompted the Army to initiate a profound and fundamental transformation to the way it plans to fight. The refinement of the Army’s Operating Concept is beginning to drive changes across the Army. The Army is making near-term changes by incorporating multi-domain operations into its doctrine, organizations, and training, which includes the accelerated creation of new cyber and electronic warfare units. However, these units are short of both people and equipment. While Army leadership believes that the urgency to confront threats justifies its decision to accelerate the development of those units, the Army did not assess the risks associated with staffing, equipping, and training its existing ICEWS unit prior to activation to determine whether it is affordable, supportable, and sustainable, and officials said it was uncertain when a more comprehensive assessment would take place. The Army plans to incorporate this unit into the first Multi-Domain Task Force by the end of Fiscal Year 2020, but in the meantime the unit could be deployed if needed. The Army did prepare a preliminary risk assessment for the 915th Cyber Warfare Support Battalion prior to activation, but it is unclear whether the Army will perform a more comprehensive risk assessment as the unit matures and nears full operational capability. For the units already activated, a risk assessment could benefit the Army by providing insights about the ability to deploy and sustain the units. It is important for the Army to assess its efforts before committing resources to activate new units. By formally assessing the risk of all new units activated in an accelerated manner, the Army will have the key information its leaders need for making decisions related to the activation of those units and other related units going forward. We are making the following three recommendations to the Secretary of the Army. The Secretary of the Army should ensure that the Deputy Chief of Staff, G-3/5/7 assess the risk associated with staffing, equipping, and training the existing ICEWS unit prior to its incorporation into the first Multi- Domain Task Force in fiscal year 2020. (Recommendation 1) The Secretary of the Army should ensure that the Deputy Chief of Staff, G-3/5/7 conduct a comprehensive risk assessment associated with staffing, equipping, and training the 915th Cyber Warfare Support Battalion prior to approving the expansion of the unit to its full operational capability. (Recommendation 2) The Secretary of the Army should ensure that the Deputy Chief of Staff, G-3/5/7 assess the risk associated with staffing, equipping, and training of new units that it plans to activate in an accelerated manner for the purposes of conducting multi-domain operations, taking into consideration the assessments performed on the first activated ICEWS battalion and the 915th Cyber Warfare Support Battalion. (Recommendation 3) We provided a draft of this report to DOD for review and comment. In its written comments, reproduced in appendix I, the Army partially concurred with the first two recommendations and concurred with the third recommendation. The Army partially concurred with the first recommendation for it to conduct a risk assessment, such as a force integration functional area analysis, for the first activated ICEWS unit. The Army stated in its comments that it does not perform force integration functional area analyses for experimental or pilot organizations, and that because the first ICEWS was activated as a pilot, no such assessment was performed. The Army added that it would conduct a risk assessment at the conclusion of the pilot if and when the Army decides to establish such a unit. We met with Army officials to discuss their comments, during which they provided additional information and clarification regarding how they were assessing risks for the unit. Based on this information, we modified the report to reflect the Army’s position that a risk assessment was unnecessary prior to activating the unit because the Army plans on using the pilot period to determine the staffing, equipping, and training requirements for the unit. We also incorporated additional information on the status of the ICEWS unit. As a result, we clarified our recommendation to state that the Army should assess the risk associated with staffing, equipping, and training the existing ICEWS unit prior to its incorporation into the first Multi-Domain Task Force in fiscal year 2020. Army officials generally agreed with the revised recommendation. Moving forward, it will be important for the Army to implement this recommendation to ensure the ICEWS unit, which is active and eligible to be deployed, will be prepared to carry out its mission effectively. The Army partially concurred with the second recommendation for it to conduct a risk assessment, such as a force integration functional area analysis, for the 915th Cyber Warfare Support Battalion. The Army stated in its comments that it does not perform force integration functional area analyses for force generating units such as the 915th Cyber Warfare Support Battalion. Instead, it develops a concept plan, which applies rigor and analysis to determine the most efficient and effective way of fielding a new unit. We met with Army officials to discuss their comments, during which they provided additional information related to assessing risks for the 915th Cyber Warfare Support Battalion. Specifically, Army officials said that prior to activating the battalion, leadership approved the battalion’s concept plan, which included an initial risk assessment. We reviewed the concept plan for the battalion and found that the assessment only addressed the risk of not having the unit’s capabilities activated and in the field for operations. We incorporated this additional information on this initial risk assessment for the 915th Cyber Warfare Support Battalion into the report. As a result of this additional information, we clarified our recommendation to state that the Army should conduct a comprehensive risk assessment associated with staffing, equipping, and training the 915th Cyber Warfare Support Battalion prior to approving the expansion of the unit to its full operational capability. Army officials generally agreed with this. It will be important for the Army to implement the revised recommendation to ensure the 915th Cyber Warfare Support Battalion, which is active and performing operations, will be prepared to carry out its mission effectively. The Army concurred with the third recommendation for it to ensure that a risk assessment is conducted before activating any new organizations it plans to field in an accelerated manner for the purposes of conducting multi-domain operations. The Army added that any lessons learned from the activation of the first ICEWS unit and the 915th Cyber Warfare Support Battalion will be taken into consideration when assessing the risk before the activation of these new organizations. It will be important for the Army to implement the recommendation to ensure that any new organizations are prepared to carry out their missions, while potentially avoiding some of the challenges that the ICEWS and 915th Cyber Warfare Support Battalion have experienced. Lastly, the Army also recommended that we change the title of our report; however, we did not accept the title offered by the Army. We believe the title accurately reflects the issues and recommendations highlighted in the report. We are sending copies of this report to the appropriate congressional committees and to the Secretary of Defense; the Acting Under Secretary of Defense for Personnel and Readiness; the Chairman of the Joint Chiefs of Staff; the Acting Secretaries of the Departments of the Air Force and the Army; the Secretary of the Navy; and the Chief of Staff of the Army. In addition, the report is available at no charge on the GAO website at http://www.gao.gov. If you or your staff have any questions about this report, please contact me at (202) 512-3489 or pendletonj@gao.gov. Contact points for our Offices of Congressional Relations and Public Affairs may be found on the last page of this report. Staff members making key contributions to this report are listed in appendix II. In addition to the contact named above, Kevin O’Neill (Assistant Director), Matt Spiers (Analyst-in-Charge), Tracy Barnes, Shannon Finnegan, Christopher Gezon, Ruben Gzirian, J. Kristopher Keener, Alberto Leff, Joshua Leiling, Amie Lesser, Jon Ludwigson, Ned Malone, and Clarice Ransom made key contributions to this report.

Summary: The rise of great-power competitors, such as China and Russia, prompted the Army to transform the way it plans to fight. The Army is developing a new warfighting concept to guide how its forces will engage jointly with other services in multiple domains, especially in cyber and space. The House Armed Services Committee included a provision in House Report 115-200 accompanying a bill for the National Defense Authorization Act for Fiscal Year 2018 for GAO to review the Army's implementation of the concept. Among its objectives, this report addresses (1) how the Army is changing its doctrine, organizations, and training in order to execute multi-domain operations; and (2) the extent to which the Army has established new cyber and electronic warfare units, including any challenges faced by these units, and whether the Army assessed risks associated with its plan to establish these units. GAO reviewed Army concepts, doctrine, force design, and training documents concerning multi-domain operations. GAO also interviewed Army and Department of Defense officials. The Army is changing aspects of its doctrine, organizations, and training to develop a force that can effectively engage great-power competitors—Russia and China—through multi-domain operations by 2028. Multi-domain operations present adversaries with multiple challenges across multiple domains (land, air, sea, cyber, and space) in contested environments. To this end, the Army is revising its doctrine to guide how the force and specific units will function. The Army is also reorganizing its force by creating new units to conduct missions in multiple domains and by updating the responsibilities of key Army formations, such as Army divisions. Also, the Army is training its combat forces for multi-domain operations in part by increasing the focus on cyber operations. The Army is establishing new cyber and electronic warfare units for multi-domain operations, but did not fully assess the risk of activating some units at an accelerated pace and is experiencing staffing, equipping, and training challenges. For example, the Army activated a cyber battalion in December 2018, and as of March 2019, this unit was understaffed by more than 80 percent. Army guidance directs the Army staff to conduct assessments on new units to determine whether the Army can staff, equip, and train these organizations. However, Army leadership believed the threats justify developing these units at an accelerated pace. Consequently, the Army did not assess the staffing, equipping, and training risk before activating one unit, and only conducted an initial risk assessment before activating a second unit. As a result, senior Army leaders may not know what other challenges could arise, such as sustainment, as the units grow in capabililty. Army officials told GAO that as these units evolve, it is uncertain when more comprehensive risk assessments would take place. The Army has previously accelerated the activations of other units when it saw fit to do so, and is considering creating other new units for multi-domain operations. If the Army does not assess risks for units activated at an accelerated pace, those units may be unable to effectively conduct multi-domain operations. GAO is making three recommendations, including that the Army comprehensively assess the risk of staffing, equipping, and training the cyber and electronic warfare units that it has activated at an accelerated pace, and to do so for new organizations it plans to activate in an accelerated manner for multi-domain operations. The Army concurred with one recommendation and partially concurred with two recommendations. GAO clarified the recommendations, as discussed in the report.