 In 1948, the field was re-designated McChord Air Force Base.On 1 August 1946, McChord was assigned to the new Air Defense Command, with a mission of air defense of the United States.During the Cold War, numerous fighter-interceptor squadrons were stationed at the base, as well as Radar and Command and Control organizations, the 25th Air Division being headquartered at McChord from 1951 until 1990.