John F. Kennedy and Nikita Khrushchev maintained official but personal correspondence that reveals respectful adversaries with a common goal: to stop the world tumbling into Armageddon. From the failed invasion at the Bay of Pigs through the Cuban Missile Crisis, a first nuclear summit, and the building of the Berlin Wall, all with the Space Race a proxy background battle, the two men form a precarious partnership, sundered with Kennedy’s assassination.