Canada in the Cold War in power believed that as long as the US president retained absolute control of the nuclear weapons, Canadian forces could be ordered to undertake nuclear missions for the US without Canadian consent. During the Cuban Missile Crisis, Canada was expected to fall in line with American foreign policy, in that Canada's military forces were expected to go on immediate war alert status. Diefenbaker however, refused to do so emphasizing the need for United Nations intervention. It would only be after a tense phone call between President John F. Kennedy and Diefenbaker that Canada's armed forces would begin preparations for "immediate
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