Cuban Project by late August, the Soviet military build-up in Cuba disgruntled the Kennedy administration. The fear of open military retaliation against the United States and Berlin for the US covert operations in Cuba slowed down the operation. By October, as the Cuban Missile Crisis heated up, President Kennedy demanded the cessation of Operation Mongoose. Operation Mongoose formally ceased its activities at the end of 1962. The first assassination plots began in the late summer of 1960, according to the Church Committee’s documentation. Some of the plots and ideas ranged from “poisoned pills, an exploding seashell, and a planned gift of a
389th Strategic Missile Wing alert during the Cuban Missile Crisis in November 1962. In May 1964, as the Atlas D missiles were being phased out, the 389th Strategic Missile Wing received SAC's last operational readiness inspection for this system. In September 1965, SAC inactivated the wing, completing the phaseout of the Atlas E at Warren. 389th Bombardment Group 389th Strategic Missile Wing 389th Strategic Missile Wing The 389th Strategic Missile Wing is an inactive unit of the United States Air Force. Its last assignment was with the 13th Strategic Missile Division at Francis E. Warren Air Force Base, Wyoming, where it was inactivated on