The 325th Fighter Wing was established on 10 May 1948 and activated on 9 June 1948. It conducted air defense of the U.S. west coast, 1948–1952 and 1956–1968. Beginning in spring 1949, the 325th conducted the All Weather Combat Crew Training School. During 1950, the wing also controlled a troop carrier squadron and from May 1950 to June 1951, provided training for elements of a troop carrier wing. On 6 February 1952 the Wing was inactivated and replaced by the 4704th Air Defense Wing, which assumed most of its operational role, while the 567th Air Base Group assumed its host base functions.