Lineage. Constituted 70th Pursuit Squadron (Interceptor) on 14 Dec 1940. Activated on 1 Jan 1941. Redesignated: 70th Fighter Squadron on 15 May 1942; 70th Fighter Squadron, Single Engine, on 20 Aug 1943; 70th Fighter Squadron, Two Engine, on 24 May 1944. Inactivated on 26 Dec 1945. Redesignated 70th