The Berlin Crisis of 1958–1959 was a crisis over the status of West Berlin during the Cold War. It resulted from efforts by Soviet leader Nikita Khrushchev to react strongly against American nuclear warheads located in West Germany, and build up the prestige of the Soviet satellite state of East Germany. American President Dwight D. Eisenhower mobilized NATO opposition. He was strongly supported by German Chancellor Konrad Adenauer, but Great Britain went along reluctantly. There was never any military action. The result was a continuation of the status quo in Berlin, and a move by Eisenhower and Khrushchev toward détente. The Berlin problem had not disappeared, and escalated into a major conflict over building the Berlin Wall in 1961. See Berlin Crisis of 1961.