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
Cuban Missile Crisis assured destruction. Mutually assured destruction means that if America decided to launch a nuclear strike against the USSR, the latter would react by launching a nuclear strike against America. Additionally, placing nuclear missiles on Cuba was a way for the USSR to show their support for Cuba and support the people in Cuba whose rights were taken away by the United States, as the latter had become their ally after the Cuban Revolution of 1959. According to Khrushchev, the Soviet Union's motives were "aimed at allowing Cuba to live peacefully and develop as its people desire". An indirect reason why