F-100 aircraft; later provided forces to Thirteenth Air Force in Thailand, 1972 as a McDonnell F-4E Phantom II squadron during defense of South Vietnam as a result of North Vietnamese Easter Offensive (Operation Linebacker). After end of United States involvement in Indochina War, 1973, returned to Cannon as a tactical fighter squadron. The 523d Fighter Squadron also deployed an McDonnell F-4 Phantom II detachment in Tainan Air Base, Taiwan. Until August 1973, its main task was to assist Taiwan’s air defense missions to resist air threats from China. Lineage Constituted as the 17th Bombardment Squadron (Light) on 22 December 1939 Activated on 1 February 1940 Redesignated 523d Fighter-Bomber Squadron on 23 August 1943 Redesignated 523d Fighter Squadron, Single Engine on 30 May 1944 Inactivated on 7 November 1945 Activated on 20 August 1946 Redesignated: 523d Fighter Squadron, Two Engine on 22 July 1947 Redesignated 523d Fighter Squadron, Jet on 1 December 1949 Redesignated 523d Fighter-Escort Squadron on 1 February 1950 Redesignated 523d Strategic Fighter Squadron on 20 January 1953 Redesignated 523d Fighter-Bomber Squadron on 1 July 1957 Redesignated 523d Tactical Fighter Squadron on 1 July 1958 Redesignated 523d Fighter Squadron on 1 November 1991 Inactivated on 30 September 2007 Assignments 27th Bombardment Group (later 27th Fighter-Bomber Group, 27th Fighter Group), 1 February 1940 – 7 November 1945 Ground echelon attached to V Interceptor Command, 24 December 1941 – 8 May 1942; further assigned to: 2nd Battalion (27th Bombardment Group) Provisional Infantry Regiment (Air Corps) 27th Fighter Group (later 27th Fighter-Escort Group), 20 August 1946 (attached to 27th Fighter-Escort Wing after 6 August 1951) 27th Fighter-Escort Wing (later 27th Strategic Fighter Wing, 27th Fighter-Bomber Wing, 27th Tactical Fighter Wing), 16 June 1952 Attached to The U.S. Logistics Group (TUSLOG), 11 February – 20 June 1960 and 12 October 1962 – c. 12 January 1963 Attached to United States Air Forces in Europe, 1 September – 20 November 1961 Attached to 4135th Strategic Wing, 12 April – 6 June 1962 Attached to 39th Air Division, 9 June – 6 September 1964 and 22 March – 30 June 1965 405th Fighter Wing, 20 November 1965 Attached to 432d Tactical Reconnaissance Wing, 9 April – 24 October 1972 27th Tactical Fighter Wing (later 27th Fighter Wing), 31 August 1973 27th Operations Group, 1 November 1991 – 30 September 2007 Stations Barksdale Field, Louisiana, 1 February 1940 Hunter Field, Georgia, 7 October 1940 – 19