WORLD HISTORY

Detailed explanation-1: -He sponsored the early Soviet space program and 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.

Detailed explanation-2: -Soviet Premier Nikita Khrushchev orders withdrawal of missiles from Cuba, ending the Cuban Missile Crisis. In 1960, Khrushchev had launched plans to install medium and intermediate range ballistic missiles in Cuba that would put the eastern United States within range of nuclear attack.

Detailed explanation-3: -After World War II, the United States and its allies, and the Soviet Union and its satellite states began a decades-long struggle for supremacy known as the Cold War.

Detailed explanation-4: -The state visit of Nikita Khrushchev to the United States was a 13-day visit from 15–27 September 1959. It marked the first state visit of a Soviet or Russian leader to the US.

Detailed explanation-5: -As World War II transformed both the United States and the USSR, turning the nations into formidable world powers, competition between the two increased. Following the defeat of the Axis powers, an ideological and political rivalry between the United States and the USSR gave way to the start of the Cold War.