On June 27, 1950, President Harry S. Truman announced he is
ordering U.S. air and naval forces to South Korea to aid the
democratic nation in repulsing an invasion by communist
North Korea.
The United States was undertaking the major military operation,
he explained, to enforce a United Nations resolution calling for
an end to hostilities, and to stem the spread of communism in
Asia.
In addition to ordering U.S. forces to Korea, Truman also
deployed the U.S. 7th Fleet to Formosa (Taiwan) to guard
against invasion by communist China and ordered an
acceleration of military aid to French forces fighting
communist guerrillas in Vietnam.