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  • 20 Bomb Squadron (ACC)

    Lineage. Organized as 20 Aero Squadron on 26 Jun1917. Redesignated: 20 Squadron on 14 Mar 1921; 20 Bombardment Squadron on 25 Jan 1923; 20 Bombardment Squadron (Heavy) on 6 Dec 1939; 20 Bombardment Squadron, Heavy, on 26 Mar 1943. Inactivated on 28 Feb 1946. Redesignated 20 Bombardment Squadron,

  • 20 Fighter Squadron

    Lineage. Constituted 20th Pursuit Squadron (Interceptor) on 22 Dec 1939. Activated on 1 Feb 1940. Inactivated on 2 Apr 1946. Redesignated 20th Tactical Fighter Training Squadron on 27 Oct 1972. Activated on 1 Dec 1972. Redesignated 20th Fighter Squadron on 1 Nov 1991. Inactivated on 8 Jul 1992.

  • 20 Fighter Wing (ACC)

    Lineage.   Established as 20 Fighter Wing on 28 Jul 1947.  Organized on 15 Aug 1947. Redesignated as: 20 Fighter-Bomber Wing on 20 Jan 1950; 20 Tactical Fighter Wing on 8 Jul 1958; 20 Fighter Wing on 1 Oct 1991.Assignments.  Ninth Air Force, 15 Aug 1947; Fourteenth Air Force, 1 Feb 1949; Tactical

  • 20 Intelligence Squadron (ACC)

    Lineage.  Constituted as 20 Photographic Mapping Squadron on 14 Jul 1942.   Activated on 23 Jul 1942.   Redesignated as: 20 Photographic Squadron (Heavy) on 6 Feb 1943; 20 Combat Mapping Squadron on 11 Aug 1943; 20 Reconnaissance Squadron, Long-Range, Photo-RCM, on 10 May 1945.   Inactivated on 20

  • 20 Operations Group (ACC)

    Lineage.   Authorized as 20 Balloon Group on 18 Oct 1927.  Redesignated as 20 Pursuit Group on 30 Jun 1929.  Activated on 15 Nov 1930.  Redesignated as: 20 Pursuit Group (Fighter) on 6 Dec 1939; 20 Pursuit Group (Interceptor) on 12 Mar 1941; 20 Fighter Group on 15 May 1942; 20 Fighter Group (Twin

  • 20 Reconnaissance Squadron (ACC)

    Lineage. Constituted as 20 Transport Squadron on 22 Nov 1940. Activated on 15 Dec 1940. Redesignated as: 20 Troop Carrier Squadron on 5 Jul 1942; 20 Troop Carrier Squadron (Special) on 13 Nov 1943; 20 Troop Carrier Squadron on 12 Apr 1944; 20 Troop Carrier Squadron, Heavy, on 17 Jun 1948; 20 Troop

  • 20 Special Operations Squadron (AFSOC)

    Lineage.   Constituted as 20 Observation Squadron (Light) on 5 Feb 1942.  Activated on 2 Mar 1942.  Redesignated as: 20 Observation Squadron on 4 Jul 1942; 20 Reconnaissance Squadron (Fighter) on 2 Apr 1943; 20 Tactical Reconnaissance Squadron on 11 Aug 1943.  Inactivated on 27 Nov 1945. 

  • 21 Airlift Squadron (AMC)

    Lineage. Constituted as 21 Transport Squadron on 7 Mar 1942. Activated on 3 Apr 1942. Redesignated as 21 Troop Carrier Squadron on 5 Jul 1942. Inactivated on 31 Jan 1946. Activated on 15 Oct 1946. Redesignated as: 21 Troop Carrier Squadron, Heavy, on 21 May 1948; 21 Troop Carrier Squadron, Medium,

  • 21 Expeditionary Mobility Task Force (AMC)

    Lineage. Established as 23 Army Air Forces Ferrying Wing on 12 Jun 1942. Activated on 18 Jun 1942. Redesignated as North Atlantic Wing, Air Transport Command, on 5 Jul 1942; North Atlantic Division, Air Transport Command on 27 Jun 1944; Atlantic Division, Air Transport Command on 20 Sep 1945;

  • 21 Expeditionary Reconnaissance Squadron (USAFE)

    Lineage. Constituted 21 Observation Squadron (Light) on 5 Feb 1942. Activated on 2 Mar 1942. Redesignated: 21 Observation Squadron on 4 Jul 1942; 21 Reconnaissance Squadron (Bomber) on 2 Apr 1943; 21 Tactical Reconnaissance Squadron on 11 Apr 1943. Disbanded on 1 May 1944. Reconstituted, and