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
United States Forces Korea leg and talons of the second grasping a laurel branch and seven arrows or. The entire shield shape is edged with a 1/16 inch(.16 cm) white border. Attached above the device is a designation band in scarlet inscribed "USFK" in white letters. The entire device is edged with a 1/8 inch (.32 cm) blue border. The shield shape reflects the United States Forces Korea’s steadfast commitment to defend the sovereignty of South Korea. The abbreviation "USFK" stands for United States Forces Korea which activated on 1 July 1957. The four stars symbolize the service and contributions of the United States