The Cuban missile crisis and its aftermath was the most serious U.S.-Soviet confrontation of the Cold War Although the crisis itself was short, it was so intense that it absorbed the entire attention of President Kennedy and his closest advisers. The Cuban missile crisis, the "sixteen days in October," ending with the Kennedy-Khrushchev "agreement" of October 28, 1962, has been studied extensively by scholars and has been described in a variety of published works.
According to Nikita Khrushchev's memoirs, in May 1962 he conceived the idea of placing intermediate-range nuclear missiles in Cuba as a means of countering an emerging lead of the United States in developing and deploying strategic missiles. He also presented the scheme as a means of protecting Cuba from another United States-sponsored invasion, such as the failed attempt at the Bay of Pigs in 1961. After obtaining Fidel Castro's approval, the Soviet Union worked quickly and secretly to build missile installations in Cuba.