Korean War United Nations Forces: A Global Coalition
The Korean War United Nations forces formed one of the largest collective military responses of the early Cold War. Under United Nations authorization, troops from 16 member states fought alongside South Korean forces after North Korea invaded the South in June 1950.
Their mission extended beyond battlefield operations. Air, naval, medical, logistical, and humanitarian units supported the defense of South Korea, while the coalition’s changing fortunes shaped the conflict until the armistice of July 1953.
The Korean War United Nations forces were formed after North Korea invaded South Korea on 25 June 1950. The United Nations Security Council authorized member states to assist South Korea, with the United States providing the majority of personnel and equipment.
Sixteen countries supplied combat troops: Australia, Belgium, Canada, Colombia, Ethiopia, France, Greece, Luxembourg, the Netherlands, New Zealand, the Philippines, South Africa, Thailand, Turkey, the United Kingdom, and the United States. Medical units came from several other nations.
The United Kingdom and Canada contributed substantial ground forces, while Australia, Turkey, and the Philippines also conducted major combat operations. South Korean troops served under the United Nations Command, although South Korea was not a separate contributing member state.
The United Nations Command coordinated multinational operations throughout the conflict. Its forces defended the Pusan Perimeter, supported the Incheon landing, and fought major battles before the armistice was signed on 27 July 1953.