Established in 1939 as a prewar bombardment squadron, it was equipped with a mixture of Douglas B-18 Bolo medium and early-model Boeing B-17 Flying Fortress heavy bombers. It trained over the US east coast flying training missions. It also had some second-line Northrop A-17 Nomad dive bombers assigned. After the outbreak of World War II in Europe it flew patrols over the Atlantic Coast searching for German U-boat activity. Deployed to Borinquen Field, Puerto Rico in late 1940, the unit was assigned to the Caribbean Air Force, 25th Bombardment Group. The unit was called to face possible action, with its sister 1st Bombardment Squadron, in April and May 1942, however, when it patrolled the Vichy FrenchMartinique area. By 1 November 1942, the squadron was transferred to Edinburgh Field, Trinidad. In August 1943, the 10th Squadron, which had by then been consolidated with the personnel and equipment of the old 1st Bombardment Squadron re-equipped with the North American B-25 Mitchell. A detachment was also maintained at Port-of-Spain at this time. With the Navy taking over the antisubmarine mission, the squadron moved to France Field, Canal Zone in December 1943, where it became an element of the VI Bomber Command. The Squadron carried on patrols up and down the Atlantic coast of Panama and into neighboring Colombian waters until relieved from assignment to Sixth Air Force and returned to the United States. on 2 May 1944. It moved to Lincoln Army Air Field, Nebraska where it became a B-25 Mitchell medium bomber replacement training unit under Second Air Force. Inactivated June 1944.
The squadron was reactivated in 1955 as a Strategic Air Command Boeing B-47 Stratojet squadron. It trained in air refueling and strategic bombardment operations with the B-47. In 1961, the squadron transferred its B-47s to other SAC wings and was inactivated.
It was reactivated on 1 December 1961 as an Intercontinental Ballistic Missile squadron assigned to the 341st Missile Wing at Malmstrom Air Force Base, Montana. It was initially equipped with 50 LGM-30A Minuteman Is in early 1962, becoming SAC's first operational Minuteman squadron. It upgraded to the Minuteman IB in 1964 and the Minuteman IIF in 1967. It received control of LGM-30G Minuteman III silos from the inactivating 321st Strategic Missile Wing at Grand Forks Air Force Base, North Dakota in 1996; the Minuteman IIs being retired. It has maintained ICBMs on alert ever since.
Lineage
Constituted as the 10th Bombardment Squadron on 22 December 1939
Redesignated 10th Bombardment Squadron, Light on 11 March 1947
Redesignated 10th Bombardment Squadron, Medium on 7 June 1955
Redesignated 10th Strategic Missile Squadron, and activated on 2 August 1961
