Nikita Khrushchev's newest tactic to shake the free world was to give the West six months to make Berlin "a free city," disengaged from the cold war and demilitarized in the heart of Communist East Germany. It brought predictable cries from critics of the Western allies' basic positions-of-strength foreign policy that it was time to think through "flexible," "positive" solutions for the whole of divided Germany. Yet Khrushchev's belligerence was convincing evidence—particularly to West Germany—that the policy of making West Berlin a showcase of prosperous freedom was successful.
Secretary of State...