Context: In May 1972, President Richard M. Nixon and Soviet Premier Leonid Brezhnev negotiated an easing of relations known as detente, creating a temporary "thaw" in the Cold War. In the spirit of good sportsmanship, the time seemed right for cooperation rather than competition, and the notion of a continuing "race" began to subside.

Question: Which two world leaders had negotiations that relieved the Cold War?

Answer: Richard M. Nixon and Soviet Premier Leonid Brezhnev