Oxnard Air Force Base (1940–1945, 1951–1970) is a former United States Air Force base located in Camarillo, California on the Oxnard Plain approximately 3 miles (4.8 km) west of the historic business district. A fighter training airfield during World War II, it was part of the Air Defense Command, later renamed Aerospace Defense Command, during the Cold War as a fighter-interceptor base.