Question: What participant in Operation Phantom Linebacker currently has about 17,000 soldiers, 10,000 of whom are stationed in South Korea? 

full_context: Document 1: Operation Vigilant Sentinel: Operation Vigilant Sentinel was a response to Saddam Hussein advance of its military forces on the border with Kuwait. The United States deployed the 74th Air Control Squadron to Kuwait on August 24, 1995. The specific battle management functions the 74th Air Control Squadron and its counterparts performed included surveillance, data link management and weapons control. The deploying units were part of a ground theater air control system, consisting of a control reporting element and an air support operations center. The US then deployed 3,500 soldiers to Kuwait in October 1996 as a deterrent to further hostile Iraqi acts toward Kuwait following the expansion of the Iraqi no-fly zones.
Document 2: 2nd Infantry Division (United States): The 2nd Infantry Division ("Indianhead"; "2ID," "2nd ID", or "Second D") is a formation of the United States Army. Its current primary mission is the defense of South Korea in the initial stages of an invasion from North Korea until other American units can arrive. There are approximately 17,000 soldiers in the 2nd Infantry Division, with 10,000 of them stationed in South Korea, accounting for about 35% of the United States Forces Korea personnel.
Document 3: 2nd Battalion (Norway): The 2nd Battalion (Norwegian: "2. bataljon" ; abbreviated as 2BN) is an infantry unit of the Norwegian Army, based at camp Skjold in Troms county in Northern Norway. It serves in the light infantry role specialized in Arctic warfare as part of Brigade Nord; the battalion is one of three manoeuvre battalions within the brigade, along with Telemark Battalion and Panserbataljonen. The 2nd Battalion serves two roles, primarily being organised for domestic defence; however, during Norway's contribution to the NATO forces in Afghanistan, the 2nd Battalion played a vital role. The 2nd Battalion also contributed consistently to the ISAF forces in northern Afghanistan, supporting an elite trained light infantry, organized as a Quick Reaction Force (QRF). The battalion is divided into four companies: Bravo company, Charlie company, the cavalry squadron and the support company. Bravo company and Charlie coy serves as specialized light infantry, focusing on Arctic warfare and urban warfare. The cavalry squadron is the battalion's internal intelligence unit as well as consisting of one platoon of marksmen. The support company is the largest of the four, and primarily consists of medics, anti-tank personnel, combat, service and support. The battalion uses a khaki beret, as opposed to the traditional black beret worn by cavalry units throughout the world, which symbolizes the battalion's long and proud history of producing some of Norway's most elite and well equipped soldiers.
Document 4: Operation Phantom Linebacker: Operation Phantom Linebacker was a coalition military operation in Iraq designed to interdict anti-government fighters from entering Iraq from Syria. The U.S. 3rd Brigade and the 2nd Infantry Division (United States) conducted the operation with the Iraqi National Guard, Iraqi Border Police, and other Multinational Forces. The U.S. III Corps uses ‘Phantom’ as its nickname. Launched in early August 2004.
Document 5: 3rd Infantry Brigade, 2nd Infantry Division: At the time of its activation, the 2nd Infantry Division was composed of the 3rd Infantry Brigade, which included the 9th Infantry Regiment; the 23rd Infantry Regiment and the 5th Machine Gun Battalion; the 4th Marine Brigade, which consisted of the 5th Marine Regiment, the 6th Marine Regiment and the 6th Machine Gun Battalion; 2nd Brigade of field artillery; and various supporting units.
Document 6: 7th Infantry Division (United States): The 7th Infantry Division is an infantry division of the United States Army. Today, it exists as a unique 250-man deployable headquarters at Joint Base Lewis-McChord overseeing several units, though none of the 7th Infantry Division's own historic forces are active.
Document 7: Operation Defeat Al Qaeda in the North: Operation Defeat Al Qaeda in the North or OP DAN was an operation conducted by Marines, A co. 2/504th Infantry Regiment of the 82nd Airborne Division, an attachment of the 101st Airborne Division, MWSS 374 and Iraqi security forces in 2008 in Al Anbar Province, Salah Ad Din Province, and Ninewa Province to hunt down and rid the Northern part of Iraq of insurgents. It was known that the desert north of Lake Tharthar was being used by insurgents to move weapons, munitions, and foreign fighters from Syria to Mosul. During Spring and Summer of 2008, a task force of Marines and paratroopers established a base of operations in the desert to the north of the lake and conducted patrols of the surrounding area to break the supply lines. The US forces managed to locate and destroy a large number of explosives and weapons, as well as kill or capture known enemy combatants. In the process, A co. 2/504th PIR conducted the first company-sized operation using the Bell Boeing V-22 Osprey. As these operations continued, Iraqi Army outposts were built and staffed, allowing for the Iraqi Army to assume the US forces' duties in Fall 2009.
Document 8: Task Force Viking: Combined Joint Special Operations Task Force – North (CJSOTF–N), also known as Task Force Viking, was the U.S. joint task force responsible for the northern front during the initial period of the 2003 invasion of Iraq (OIF Rotation I). It secured Kirkuk, Mosul, and the northern oil fields; prevented 13 Iraqi Army divisions from defending Baghdad or reinforcing defensive operations against American and British troops advancing in the south, and thwarted Turkish efforts to subvert Kurdistan. Task Force Viking conducted artillery observer, direct action, special reconnaissance, and unconventional warfare missions in order to disrupt and fix Iraqi forces arrayed along the "Green Line", the nominal 1991 demarcation line between the Kurdish northern provinces of Iraq and the remainder controlled by Saddam Hussein.
Document 9: Operation Mountain Viper: In Operation Mountain Viper, the United States Army and the Afghan National Army (nearly 1000 in number) worked together from August 30 to early September, 2003, to uncover hundreds of suspected Taliban rebels dug into the mountains of Daychopan district, Zabul province, Afghanistan.
Document 10: Operation Peninsula Strike: Operation Peninsula Strike was a series of raids conducted by American troops from 9 to 13 June 2003 as part of Operation Iraqi Freedom. It took place on a peninsula alongside the Tigris River near Balad, Iraq. Conducted by members of Task Force Ironhorse, US forces sought to eliminate Ba'ath Party members, paramilitary, and other subversive units. Specifically, US Forces were to hit five objectives simultaneously, detain the targets and screen them for intelligence.
Document 11: Task Force Shield: Task Force Shield was set up by the Coalition Provisional Authority in 2003 to provide security for Iraq's critical oil infrastructure. The task force was originally composed of a small team of American military personnel, contractors from the UK-based firm Erinys International, and Iraqis hired, trained and supervised by Erinys. The Iraqi force trained by Erinys was called the Oil Protection Force (OPF). After the Coalition Provisional Authority transferred control of Iraq to the Interim Government, the OPF became a subordinate element of Iraq's Ministry of Oil. The Ministry of Oil did not renew the Erinys contract. Task Force Shield was disbanded in 2005. In April 2006, the Office of the Special Inspector General for Iraq Reconstruction published a report on the activities of Task Force Shield. The report determined that Task Force Shield was ultimately unsuccessful and found that there were indications of potential fraud.
Document 12: 1st Cavalry Division (United States): The 1st Cavalry Division ("First Team") is a combined arms division and is one of the most decorated combat divisions of the United States Army, as well as the other four branches of the U.S. military. It is based at Fort Hood, Texas. It was formed in 1921 and served during World War II, the Korean War, the Vietnam War, the Persian Gulf War, with the Stabilization Force in Bosnia-Herzegovina, in the Iraq War, in the War in Afghanistan and in Operation Freedom’s Sentinel. As of 2017, the 1st Cavalry Division is subordinate to III Corps and is commanded by Major General John C. Thomson III.
Document 13: United States Army Garrison Daegu: United States Army Garrison Daegu, also known as USAG Daegu is a medium-sized United States Army Garrison headquartered in the Nam District, Daegu Daegu Metropolitan City in South Korea. USAG Daegu provided base operations and support for Camps Henry, Walker and George in Daegu, Camp Carroll in Waegwan, Chilgok County, the Busan Storage facility and Pier 8 in Busan Metropolitan City, the DLA Disposition Services in Apo-eup Gimcheon and various other remote mountaintop sites. USAG Daegu also provides support to the United States Navy at Commander Fleet Activities Chinhae in Jinhae-gu, to the United States Marine Corps at Camp Mujuk in Pohang, and the United States Air Force at K-2 Airfield colocated at the Daegu International Airport. Nearly 10,000 Soldiers, Family members, Civilian employees, KATUSA Soldiers and Korean employees live, work and play on USAG Daegu installations.
Document 14: Gulf War: The Gulf War (2 August 199028 February 1991), codenamed Operation Desert Shield (2 August 199017 January 1991) for operations leading to the buildup of troops and defence of Saudi Arabia and Operation Desert Storm (17 January 199128 February 1991) in its combat phase, was a war waged by coalition forces from 35 nations led by the United States against Iraq in response to Iraq's invasion and annexation of Kuwait.
Document 15: 25th Infantry Division (United States): The 25th Infantry Division (nicknamed "Tropic Lightning" and the "Electric Strawberry" is a U.S. Army division based in Hawaii. The division, which was activated on 1 October 1941 in Hawaii, conducts military operations in the Asia-Pacific region. Its present deployment is composed of Stryker, light infantry, airborne, and aviation units.
ground_truth: 2nd Infantry Division (United States)