Timeline of United States military operations May 1949. 1948–1949: China: Marines were dispatched to Nanking to protect the American Embassy when the city fell to Communist troops, and to Shanghai to aid in the protection and evacuation of Americans. 1950–1953: Korean War: The United States responded to the North Korean invasion of South Korea by going to its assistance, pursuant to United Nations Security Council resolutions. US forces deployed in Korea exceeded 300,000 during the last year of the active conflict (1953). Over 36,600 US military were killed in action. 1950–1955: Formosa (Taiwan): In June 1950, at the beginning of the Korean War, President Truman ordered
Fifth Air Force in Korea. This numbered air force was established as Fifth Air Force, Advance, and organized at Itazuki AB, Japan, assigned to Fifth Air Force, on 14 July 1950. It moved to Taegu AB, South Korea, on 24 July 1950, and was redesignated Fifth Air Force in Korea at the same time. After moving, it apparently received command control from U.S. Far East Air Forces. The establishment operated from Pusan, Taegu, and Seoul before being discontinued on 1 December 1950. 2nd Combat Cargo Group: October 1944-15 January 1946 Commands Divisions Fifth Air Force The Fifth Air Force (5 AF) is a