It was last assigned to the 389th Strategic Missile Wing at Francis E. Warren Air Force Base, Wyoming, where it was inactivated on 25 March 1965.

From this location, the detachment participated in Operation Tidal Wave, the low level attack on oil refineries near Ploesti, for which it was awarded a Distinguished Unit Citation.

It was activated as a strategic missile unit at Offutt Air Force Base, Nebraska in 1959, but moved to Warren in 1961 as it was becoming operational.

A little over a month later, its cadre moved to Biggs Field, Texas, where it began training with the Consolidated B-24 Liberator heavy bomber.

The ground echelon proceeded to the New York Port of Embarkation and Camp Kilmer, New Jersey, sailing on the RMS Queen Elizabeth, reaching the United Kingdom on 6 July.

During the later part of the month the squadron concentrated on training for low-level operations in preparation for the attack on the oil refineries around Ploesti, Romania.

The squadron again deployed to Tunisia during September and October 1943 to support Operation Avalanche, the landings on the Italian mainland at Salerno, striking targets in Corsica, Italy, and Austria.

After returning to England, the squadron concentrated on strategic bombing campaign against Germany, with targets including industrial areas of Berlin, oil production plants at Merseburg, and factories at Munster, and shipbuilding facilities at Vegesack.

It struck V-1 flying bomb and V-2 rocket launch sites in the Pas de Calais and participated in the strikes against the German aircraft manufacturing industry during Big Week in late February 1944.

It supported Operation Varsity, the airborne assault across the Rhine by dropping food, ammunition, and other supplies to the ground troops.

[12] On 30 March 1961, the squadron was declared operational, the last Atlas D unit to do so, completing the deployment of the D model of this intercontinental ballistic missile.

[16] Despite the need for stealth, eventually a priority was established that resulted in the entire production of liquid oxygen in the US being diverted to SAC to bring the missiles to readiness.