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
Air Battle of South Korea point were losing the Battle of Chochiwon and the Battle of Taejon. By the start of the Battle of Pusan Perimeter, the air battle for South Korea had been won by the UN, and it used its air superiority decisively to its advantage during that battle. The UN would remain unopposed in the skies until the Chinese forces entered the war in November of that year. In spite of the unsuccessful UN ground action from June 25 to August 4, the air battle for South Korea was considered a crucial success for the UN forces. Able to attain air superiority