In 1960, Eisenhower became more aware of the costs  and limitations of relying on Nuclear weapons to deal with the Soviet Union. The term Mutually Assured Destruction(MAD) came about to express one such limitation. Eisenhower tried to arrange for a Conference with  General secretary Khrushchev , but a U-2 Spy Plane flying over Soviet Air Space was shot down, At first the U.S. Denied the incident, but the Soviets said “we Have the Plane” then the U.S. said it was an accidental off course flight… and the Soviets said; “we have the Pilot. “ and the U.S. admitted to spying, and arranged to make a 