Lineage. Constituted 68th Pursuit Squadron (Interceptor) on 20 Nov 1940. Activated on 15 Jan 1941. Redesignated: 68th Fighter Squadron on 15 May 1942; 68th Fighter Squadron, Single Engine, on 20 Aug 1943; 68th Fighter Squadron, Two Engine, on 24 May 1944; 68th Fighter Squadron, Single Engine, on 8