"Truman Orders U.S. Air, Navy Units to Fight in Aid of Korea; UN Council Supports Him; our Fliers in Action; Fleet Guards Formosa."      The New York Times

After a United Nations Security Council ceasefire resolution failed to end invasion of South Korea by North Korea, President Truman, with UN support, ordered American forces to come to South Korea’s aid.  The first air confrontation, on June 27, resulted in the downing of three North Korean aircraft.  American ground troops were deployed by June 29, and by August, some 90,000 United States soldiers were in Korea.