Leonid Ilyich Brezhnev was a Soviet politician who served as General Secretary of the Communist Party of the Soviet Union from 1964 until his death in 1982, and Chairman of the Presidium of the Supreme Soviet from 1960 to 1964 and again from 1977 to 1982. His 18-year term as General Secretary was second only to Joseph Stalin's in duration. To this day, the value of Brezhnev's tenure as General Secretary remains debated by historians.

Nikita Sergeyevich Khrushchev was First Secretary of the Communist Party of the Soviet Union from 1953 to 1964, and Chairman of the Council of Ministers (premier) from 1958 to 1964. During his rule, Khrushchev stunned the communist world with his denunciation of his predecessor Joseph Stalin's crimes and embarked on a policy of de-Stalinization with his key ally Anastas Mikoyan. He sponsored the early Soviet space program and the enactment of moderate reforms in domestic policy. After some false starts, and a narrowly avoided nuclear war over Cuba, he conducted successful negotiations with the United States to reduce Cold War tensions. In 1964, the Kremlin circle stripped him of power, replacing him with Leonid Brezhnev as First Secretary and Alexei Kosygin as Premier.