The site served as the headquarters for U.S. military forces stationed in South Korea, known as United States Forces Korea (USFK), and as United States Army Garrison Yongsan (USAG-Yongsan) until 2018, under the supervision of the U.S. Army's Installation Management Command Pacific Region.

[3][4][5] By the end of 2019, more than 20,000 U.S. troops and family members will have been relocated to the new Camp Humphreys facility south of Seoul.

[1] In November 1992 some 297,000 square meters (77 acres) of land, including a golf course, was given back to the City of Seoul to become Yongsan Family Park and the site of the National Museum of Korea.

[citation needed] In April 2003 South Korea and the United States agreed on the early relocation of Yongsan Garrison outside of central Seoul.

[9] In August 2008, U.S. President George W. Bush spoke to U.S. and South Korean military personnel, their families, and civilian employees at Yongsan Garrison's Collier Field House, 6 as part of his final visit to Asia.

[10][11] During his speech, Bush said,"Fifty-five years have passed since the guns went quiet and the cease-fire was signed on this peninsula, and since that time our forces have kept the peace.

[15][16] South Korea had traditionally regarded this garrison as insurance against the U.S. Army abandoning Seoul, located only about 65 km from the DMZ.

The Embassy of the United States in Seoul may build a new chancery on part of the land planned to be vacated by the U.S. Army, most probably on Camp Coiner.

[citation needed] Facilities include multiple family housing areas, a large commissary[17] and Post Exchange,[18] Army Family and Morale, Welfare and Recreation facilities,[19] restaurants, indoor and outdoor sports complexes, a library, a bowling alley, a skateboard park, a miniature golf complex, a hospital, a dental clinic, three Department of Defense Dependent Schools, a United Service Organization (USO), child development centers, indoor and outdoor swimming pools, an automotive care center, and a self-service gas station.

[20] The garrison is also home to the Dragon Hill Lodge,[21] a hotel which is operated as an Armed Forces Recreation Center by the U.S. Army in support of personnel assigned or employed by the U.S.

Named in honor of Corporal John Collier,[26] who was posthumously awarded the Medal of Honor for his service during the Korean War, this sports complex is on Yongsan South Post and features basketball, racquetball, volleyball, baseball, softball, aerobic, and weight training facilities.

[citation needed] Outside the garrison, east of the compound is the commercial district of Itaewon, with westernized shopping and nightlife.

[20][40] According to garrison officials, "The Army Family Covenant is our commitment to deliver a quality of life commensurate to our Soldiers' service.

[20] The garrison's primary housing areas[41] include Loring Village, Lloyd L. Burke Towers, Watkins Ridge and Krzyzowski Hills.

The towers were named after Army 1st Lt. Lloyd L. Burke,[26] who was awarded the Medal of Honor for his service during the Korean War.

Hill, Va.[32][37][45] Yongsan Garrison was home to the Brian Allgood Army Community Hospital (BAACH).

[46][47] The main tenant unit residing in BAACH was the 121st Combat Support Hospital, providing the staff for inpatient and outpatient care.

[48] It has served continuously in Korea as a field unit since 25 September 1950 and as fixed medical treatment facility, Seoul Military Hospital, since 1959.

[46] Allgood's final assignment was July 2006 when he was posted as the Command Surgeon Multi-National Forces-Iraq (MNF-I).

On 20 January 2007, he, along with 11 other U.S. service members, were killed in action when their UH-60 helicopter was shot down by enemy rocket fire in Iraq.

[53] The classrooms at that time were Quonset huts located across from the main Army Community Service building.

[54] The main building houses primary classrooms, the Information Center, the Dolphin Theater, and computer labs.

The school's curriculum is based on the U.S. national standards with special classes including art, music, physical education, computer and Korean culture.

[54] Since 2004, the metropolitan government has tried to clean up high levels of benzene and total petroleum hydrocarbons (TPH) in areas adjacent to the Yongsan base, such as Noksapyeong Station.

As countless USFK personnel as well as Korean civilians have lived and worked on post, Yongsan Garrison has had far-reaching influence on Korea's society and development.