The squadron was stationed at RAF Rattlesden, England, from December 1943 to August 1945. It flew its first combat mission on 24 December 1943 against a V-1 flying bomb launch site near Saint-Omer in Northern France. From December 1943 to May 1944, the squadron helped prepare for the invasion of the European continent by attacking submarine pens, naval installations, and cities in Germany; missile sites and ports in France; and airfields and marshaling yards in France, Belgium and Germany. The squadron conducted heavy bombardment missions against German aircraft industry during Big Week, 20 to 25 February 1944. The unit supported Operation Overlord, the invasion of Normandy in June 1944 by bombing airfields and other targets. On D-Day the squadron bombed the beachhead area using pathfinder aircraft. The squadron aided in Operation Cobra, the breakthrough at Saint Lo, France, and the effort to take Brest, France, from July to September 1944. It bombed strategic targets from October to December 1944, concentrating on sources of oil production. It assaulted marshalling yards, railroad bridges and communication centers during the Battle of the Bulge from December 1944 to January 1945. In March 1945 the group bombed an airfield in support of Operation Varsity, the airborne assault across the Rhine. The unit flew its last combat mission on 21 April 1945 against a marshalling yard at Ingolstadt, Germany. The 708th redeployed to the United States during the summer 1945. The air echelon ferried their aircraft and personnel back to the United States, leaving on 29 and 30 June 1945. The squadron ground echelon, along with the group headquarters and 710th Squadron sailed on the SS Joseph T. Robinson on 1 August 1945, from Liverpool. Most personnel were discharged at Camp Myles Standish after arrival at the port of Boston. A small cadre proceeded to Drew Field, Florida and the squadron inactivated on 7 November 1945.
Reserve operations
The 707th Bombardment Squadron was activated again under Air Defense Command in the reserves on 10 November 1947 at Bergstrom Field, Texas. In July 1948, Continental Air Command assumed reserve training responsibility for reserve and Air National Guard units from ADC. It was nominally a Boeing B-29 Superfortress very heavy bombardment squadron, although it is not certain that it was equipped or fully manned. The May 1949 Air Force Reserve program called for a new type of unit, the Corollary Unit, which was a reserve unit integrated with an active duty unit. The plan was viewed as the best method to train reservists by mixing them with an existing regular unit to perform duties alongside the regular unit. The squadron moved to Castle Air Force Base, California in June 1949, where it became a "Medium" unit in June 1949 and a corollary of the 93d Bombardment Wing, which was the regular combat wing at Castle. In May 1951, the squadron was mobilized for the Korean War, as were all reserve corollary units, and its personnel were used as fillers for other units, while the squadron was inactivated on 16 June.
Lineage
Constituted as the 708th Bombardment Squadron on 6 April 1943
Redesignated 708th Bombardment Squadron, Very Heavy on 24 October 1947
Assignments
447th Bombardment Group, 1 May 1943 – 7 November 1945
447th Bombardment Group, 10 November 1947 – 16 June 1951