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 Air Force In South Korea North Korean forces largely removed from the South, the United Nations decided to enforce its prewar intention of reuniting all of Korea under one government, and UN forces advanced across the 38th parallel and into North Korea in early October 1950. However, the decision to cross the 38th Parallel appears, in retrospect, to have been the turning point in the Korean War. On 1 October Chinese Premier Chou En-lai warned that China would not tolerate or stand aside if UN forces invaded North Korea. This was a clear threat that China would intervene if that should happen. On the second