Moving beyond a chronological survey of events to an analysis of the rivalries of groups, ideas, and interests that have shaped American diplomacy, Robert Schulzinger explains how and why policy is made, outlines the fundamental beliefs behind U.S. foreign policy, and traces the consistent pattern of America's relations with the rest of the world from the Spanish-American War to the present. Now including completely updated material on the events around the globe that marked the end of the cold war and the tumultuous and controversial foreign policy of the Bush administration, the text discusses the roles of the president, executive departments, Congress, interest groups, and media in shaping foreign policy, and pays special attention to the ways in which foreign policy issues have affected particular elections. With its engaging style and colorful prose, American Diplomacy in the Twentieth Century is an invaluable source for students of United States foreign policy.