Weapons of Mass Destruction (WMD)

320th Missile Squadron [320th MS]

The 320th Missile Squadron at Francis E. Warren AFB, Wyo., operates, maintains and secures 50 Minuteman III intercontinental ballistic missiles and five launch control centers.

Constituted 320th Bombardment Squadron (Heavy) on 28 Jan 1942. Activated on 15 Apr 1942. Redesignated 320th Bombardment Squadron, Heavy, on 6 March 1944. Inactivated on 27 Jan 1946. Redesignated 320th Bombardment Squadron, Very Heavy, on 11 Jun 1947. Activated on 1 Jul 1947. Inactivated on 6 Sep 1948. Redesignated 320th Bombardment Squadron, Medium, on 20 Dec 1950. Activated on 2 Jan 1951. Redesignated 320th Strategic Reconnaissance Squadron, Medium, on 16 Jun 1952. Discontinued on 20 Jun 1960. Redesignated 320th Strategic Missile Squadron (ICBM-Minuteman) on 30 Jul 1963. Organized on 8 Jan 1964. Redesignated 320th Missile Squadron on 1 Sep 1991.

Combat in Southwest and Western Pacific, 16 Nov 1942-24 Jul 1945. Apparently not manned, 1 Jul 1947-6 Sep 1948. Operational training, 1 Jun 1951-Sep 1952; replacement training, 1 Jun 1951-1 Sep 1953; SHORAN training, 10 Nov 1952-30 Nov 1953; RB-47 crew training, c. 1 Jan 1959-20 Jun 1960. Strategic missile operations, 1964-.