Col. Robert Garland, USAF Weapons School commandant, activates the 315th Weapons Squadron and Lt. Col. Jason Seyer assumes command, 2 March 2012 at Nellis Air Force Base
Established as the first USAF intercontinental ballistic missile (ICBM) training squadron at Cooke Air Force Base California in May 1958. As the 4315th Student Squadron, and later 4315th Combat Crew Training Squadron, the unit was responsible for implementing the Strategic Air Command missile combat crew training program. All USAF ICBM crew personnel (Atlas, Titan I, Titan II, Minuteman I,II, II) up to the inactivation of the 4315th in July 1993 were trained at one time or another by this unit. In 1993, Air Education and Training Command assumed the crew training role from Air Combat Command and activated the 381st Training Group to replace the 4315th.[2]