"Ironically, the enhanced short-term prestige that Kennedy experienced in the wake of the Cuban missile crisis only produced greater long-term insecurity for his country. The humiliation Krushchev suffered at the hands of Kennedy during the missile crisis contributed to his removal from power in October 1964. The new Soviet leadership, headed by Leonid Brezhnev, was determined to avoid a repetition of the humiliation Krushchev had experienced. Beginning in early 1965, the Kremlin embarked on a massive expansion of the Soviet nuclear arsenal that would enable the Soviet Union to achieve nuclear parity with the United States by the end of the decade."