March 1923 Activated on 1 April 1931 Redesignated 9th Bombardment Squadron (Heavy) on 6 December 1939 Redesignated 9th Bombardment Squadron, Heavy on 13 July 1943 Inactivated on 6 January 1946 Redesignated 9th Bombardment Squadron, Very Heavy and activated, on 1 October 1946 Redesignated 9th Bombardment Squadron, Heavy, on 20 July 1948 Discontinued and inactivated, on 25 June 1968 Redesignated 9th Bombardment Squadron, Medium on 28 January 1969 Activated and organized on 2 July 1969 Redesignated 9th Bombardment Squadron, Heavy on 31 December 1971 Redesignated 9th Bomb Squadron on 1 September 1991 Inactivated on 15 August 1992 Activated on 1 October 1993 Assignments Post Headquarters, Camp Kelly, 14 June-8 July 1917 Post Headquarters, Camp Selfridge, 8 July-28 October 1917 Aviation Concentration Center, 28 October- 7 December 1917 American Expeditionary Forces, 25 March 1918 Attached to the Royal Flying Corps for training, 7 December 1917 – 16 August 1918 Replacement Concentration Center, AEF, 16–23 August 1918 1st Air Depot, AEF, 23–28 August 1918 First Army Observation Group, 30 August 1918 Third Army Air Service, c. 21 November 1918 VII Corps Observation Group, c. 21 November 1918 1st Air Depot, AEF, 18–25 May 1919 Advanced Section Services of Supply, 25 May-7 June 1919 Post Headquarters, Mitchell Field, 8 June 1919 Western Department, c. 22 July 1919 Ninth Corps Area, 20 August 1920 – 29 June 1922 7th Bombardment Group, 1 April 1931 – 6 January 1946 Attached to United States Army Middle East Air Force for operations, 28 June-c. 4 October 1942 7th Bombardment Group, 1 October 1946 (attached to 7th Bombardment Wing after 16 February 1951) 7th Bombardment Wing, 16 June 1952 – 25 June 1968 340th Bombardment Group, 2 July 1969 7th Bombardment Wing, 31 December 1971 7th Operations Group, 1 September 1991 – 15 August 1992 7th Operations Group, 1 October 1993 – present Stations World War I Camp Kelly, Texas, 14 June 1917 Selfridge Field, Michigan, 8 July 1917 Aviation Concentration Center, Garden City, New York, 28 October–22 November 1917 Romsey Rest Camp, Winchester, England, c. 8 December Squadron separated into flights for training with RFC "A" Flight: South Charleton Aerodrome, Devon "B" Flight: Scampton Aerodrome, Lincolnshire "C" Flight: Spittlegate Aerodrome, Lincolnshire "D" Flight: Harlaxton Aerodrome, Lincolnshire RFC Grantham, Lincolnshire, February, c. 28 December 1918 – 7 August 1918 Southampton, England, 7 August 1918 Le Havre, France, 13 August 1918 St. Maixent Replacement Barracks, France, 16 August 1918 Colombey-les-Belles