1976 as part of Pacific Air Forces, it maintained an effective training program for United States Air Force tactical units in Thailand. Inactivated as part of the USAF phaseout of activities in Thailand after the end of the Vietnam War. Lineage Constituted as the 17th Bombardment Wing on 3 October 1940 Activated on 18 December 1940 Inactivated on 1 September 1941 Activated on 23 June 1942 Redesignated 17th Bombardment Training Wing in January 1943 Redesignated 17th Bombardment Operational Training Wing in April 1943 Inactivated on 15 November 1943 Redesignated 17th Bombardment Operational Training Wing (Very Heavy) Activated on 11 March 1944 Inactivated on 9 April 1946 Disbanded on 8 October 1948 Reconstituted and redesignated 17th Air Division, on 1 July 1959 Activated on 15 July 1959 Redesignated as: 17th Strategic Aerospace Division on 15 February 1962 Redesignated as: 17th Strategic Missile Division on 1 September 1963 Redesignated as: 17th Strategic Aerospace Division on 1 July 1965 Inactivated on 30 June 1971 Redesignated as: 17th Air Division on 24 January 1975 Activated on 1 July 1975 Inactivated on 1 January 1976 Assignments GHQ Air Force, 18 December 1940 Southeast Air District (later, Third Air Force), 16 January 1941 – 1 September 1941 Attached to III Bomber Command, 23 April – 1 September 1941 Second Air Force, 23 June 1942 II Bomber Command, 15 May 1943 Second Air Force, 6 October – 15 November 1943; 11 March 1944 Fifteenth Air Force, 31 March – 9 April 1946 Second Air Force, 15 July 1959 Eighth Air Force, 1 July 1963 Fifteenth Air Force, 31 March 1970 – 30 June 1971 Pacific Air Forces, 1 July 1975 – 1 January 1976 Components Commands XXI Bomber Command: attached c. 15 April – 20 October 1944 XXII Bomber Command: attached 14 August 1944 – 13 February 1945 Wings 13th Bombardment Wing: attached 17 August – 17 October 1945 20th Bombardment Wing: attached c. 15 August 1945 – January 1946 22d Pursuit Wing: attached 16 January – c. 16 June 1941 41st Bombardment Wing: attached 17 March – 4 July 1943 47th Bombardment Wing: attached c. 15 August 1945 – January 1946 70th Bombardment Wing: 1 July 1965 – 31 December 1969 72d Bombardment Operational Training Wing: attached 20 August – c. 6 October 1943 73d Bombardment Wing: attached c. 15 April – 17 July 1944 96th Bombardment Wing: attached 16 August – 17 October 1945 305th