Twentieth Air Force Bombardment Group, remaining at North Field, Guam as its only operational organization. In 1949, budget reductions forced the realignment and consolidation of Air Force units in the pacific, and the mission of Twentieth Air Force became the defense of the Ryukyu Islands and was reassigned to Kadena AB, Okinawa. It commanded the following units: On 27 June 1950, the United Nations Security Council voted to assist the South Koreans in resisting the invasion of their nation by North Korea. President Harry S. Truman authorized General Douglas MacArthur (commander of the US occupying forces in Japan) to commit units to the
United States Forces Korea UNC and CFC by coordinating and planning among US component commands and providing US supporting forces to the CFC. As such, USFK continues to support the ROK-US Mutual Defense Treaty. In response to the North Korean attack against South Korea on 25 June 1950, the United Nations Security Council (UNSC) established the UNC as a unified command under the US in UNSC Resolution 84 on 7 July 1950. The UNC mission was to assist South Korea to repel the attack and restore international peace and security in Korea. Throughout the war, 53 nations provided support to the UNC; 16 nations