Activated as a B-26 Marauder medium bomber squadron; trained under Third Air Force in the southeastern United States. Deployed to European Theater of Operations ; assigned to VIII Bomber Command, 3d Bombardment Division in England. Engaged in combat operations over France and the Low Countries, attacking enemy military targets; formations; airfields; railroads; bridges and other raids to disrupt enemy defends. Coordinated raids with VIII Bomber Command heavy strategic bombardment of military and industrial targeted in Nazi Germany and in Occupied Europe by striking Luftwaffe day interceptor airfields to cause maximum disruption of air defenses when heavy bomber groups returning from bombardment raids. Destroyed many enemy aircraft on the ground; destroyed support buildings; barracks and enemy aircraft on the ground. After D-Day invasion of Europe, engaged in tactical air support of Allied ground forces, carrying out bombardment attacks against enemy strong points, structures and targets of opportunity when making sweeps of enemy rear areas. Moved from England to Advanced Landing Grounds in France and further eastward as ground forces advanced across continent; engaging enemy targets during the Western Allied invasion of Germany in early 1945. Continued combat operations until German capitulation in May 1945. Became part of the United States Air Forces in Europe forces in Occupied Germany; summer 1945. Demobilized in Germany in November and squadron inactivated as a paper unit in the United States. Reactivated as a B-26 Invader reserve light bomber squadron in 1947. Trained in the reserves; activated in 1951 due to the Korean War. Personnel and aircraft reassigned to units of Far East Air Force in South Korea; squadron inactivated as a paper unit in the United States shortly afterward. Reactivated as a Tactical Air Command fighter squadron in 1955; inactivated in 1957 due to budget reductions. Reactivated by Air Training Command as a navigator training squadron in 1972; inactivated with the closure of Mather AFB and the inactivation of its host unit in 1993.
Lineage
Constituted 454th Bombardment Squadron on 19 June 1942
Redesignated 454th Bombardment Squadron on 9 September 1947
Redesignated 454th Fighter-Bomber Squadron on 9 May 1955
Redesignated as 454th Flying Training Squadron and activated on 1 April 1973
Assignments
323d Bombardment Group, 4 August 1942 – 26 November 1945; 26 September 1947 – 17 March 1951
323d Flying Training Wing, 1 April 1973 – 1 October 1993