Yongsan Garrison (; Hanja: ), meaning "dragon hill garrison", is an area located in the Yongsan District of central Seoul, South Korea. 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. From 1910 to 1945 it served as headquarters for the Imperial Japanese Army in Korea. The USFK headquarters relocated to the new $11 billion Camp Humphreys in Pyeongtaek south of Seoul in 2018, as part of the Yongsan Relocation Plan. 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. While most of the land will be returned to the South Korean government, the U.S. will retain a small portion of land in order to keep open the Dragon Hill Lodge military resort hotel and for a future site to relocate the U.S. Embassy in Seoul. Korean officials are still debating the future use of the land being returned, with some calling for a large park and others calling for more affordable housing. History Yongsan land had traditionally been the site of military facilities under former Korean kingdoms. In 1882, Qing troops used it during the Imo Incident. During those times, Korean and Japanese garrisons were on the outskirts of the city in mostly undeveloped land. The Imperial Japanese Army originally created it as a garrison and from 1910 to 1945 it served as its headquarters. Since then, the city of Seoul has spread, to envelop Yongsan Garrison. Yongsan Garrison has been used by the United States Army as Garrison Yongsan (USAG-Yongsan), under the supervision of the Installation Management Command Pacific Region. 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 recently opened National Museum of Korea. The opening of the completed National Museum was delayed several years while the fate of a U.S. Army helicopter landing facility (H-208) was decided (its approach path and landing pads were directly in front of the museum). In April 2003 South Korea and the United States agreed on the early relocation of Yongsan garrison outside of central Seoul.