The Cuban Missile Crisis was a confrontation between the U.S., the Soviet Union, and Cuba during the Cold War.
The climax period of the crisis began on October 15, 1962, when photographs taken by an AMerican U-2 spy plane revealed missile bases being built in Cuba.
These missiles could reach practically anywhere in the U.S.
Letter From Chairman Khrushchev to President Kennedy
“We are willing to remove from Cuba the missiles which you regard as offensive. Your representatives will make a declaration to the effect that the United States, for its part, will remove it missiles from Turkey.”