Lineage. Constituted as 11 Air Police Squadron, Bombardment, Heavy, on 18 Nov 1948. Redesignated as 11 Air Police Squadron on 9 Aug 1950. Activated on 16 Feb 1951. Inactivated on 20 Jun 1953. Activated on 13 Dec 1957. Redesignated as: 11 Combat Defense Squadron on 1 Mar 1959; 11 Security