 In May 1958, the 90th Wing returned to the training mission serving as a combat crew training wing for RB-47 aircrews until it was inactivated on 20 June 1960.The squadron's personnel and equipment were transferred to the 25th Bombardment Squadron, which moved to Forbes on paper from Schilling Air Force Base, Kansas the same day.The squadron was reactivated on 1 October 1963 as an intercontinental ballistic missile squadron assigned to the 90th Strategic Missile Wing at Francis E. Warren Air Force Base, Wyoming, and equipped with fifty LGM-30B Minuteman Is, armed with a single reentry vehicle.