NatoHas appeared under many labels since its creation — Guardian of Peace, Pawn of Power Politics, Savior of the West, and Harbinger of War. All of them probably have some validity. But no matter which sobriquet is most applicable, the most significant feature of the alliance may be that it has survived twelve years of continuous challenges. By its survival it has become the symbol of America's abandonment of isolationism. In an age in which foreign policy plays the kind of role in domestic politics that would have been unthinkable in the nineteenth century, NATO represents a coherence in foreign policy that transcends party differences. Conceived under the Republican 80th Congress, put into effect by President Truman and Secretary Acheson, and expanded by President Eisenhower and Secretary Dulles, NATO now takes its place with the New Deal as a major factor in American life in the mid-twentieth century.