Members of the Campaign for Nuclear Disarmament march during a protest against U.S. action over the Cuban missile crisis on Oct. 28, 1962, in London.
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U.S. President John F. Kennedy speaks during a televised speech to the nation about the strategic blockade of Cuba during the missile crisis on October 24, 1962, in Washington.
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Protesters stage a sit-in during a demonstration against the Cuban missile crisis on October 24, 1962, in London.
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An aerial picture of Mariel naval port in Cuba shows three Soviet ships waiting to be loaded with the missiles in accordance with the US-Soviet agreement on the withdrawal of the Russian Missiles from Cuba.
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Soviet Ambassador to the USA Anatoly Dobrynin arrives at the State Department in Washington on October 22, 1962, during the Cold War at the height of the cuban Missile Crisis.
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U.S. President John F. Kennedy signs the order of the naval blockade of Cuba, on October 24, 1962, in the White House.
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The Soviet ship Kasimov shown just off Cuba with 15 (Soviet) I1-28 aircraft on board December 10, 1962. Fuselage crates were opened by the Soviet crew for U.S. air inspection, with the airplanes removed at the request of U.S. authorities during the Cuban missile crisis.
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A marble plaque marks the place where a Russian R-12 theater missile was deployed during the 1962 missile crisis in San Cristobal, Cuba on October 12, 2012.
Adalberto Roque/AFP/Getty Images
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A Cuban soldier paints a SAM-2 missile deployed during the missile crisis of 1962 in Havana.
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A soldier poses for a photograph on the outer casing of an old, empty Soviet missile on exhibit at the military complex Morro Cabana in Havana, Cuba.