Lineage. Constituted as 100 Airdrome Squadron on 1 Apr 1943. Activated on 5 Apr 1943. Inactivated on 25 Dec 1945. Disbanded on 8 Oct 1948. Reconstituted, redesignated as 100 Operations Support Squadron, and activated, on 1 Feb 1992. Assignments. Second Air Force, 5 Apr 1943; Eighth Air Force Base