Includes bibliographical references and index.

Introduction: History and the Discipline(s) of International Relations I. The History of a Discipline: Origins, Theory, and Tools 1. From the First World War to the Early Cold War 2. After Morgenthau: Scientific Realism and Its Critics 3. IR, the Other Social Sciences, and the State II. IR and International History 4. The Ancient World: Thucydides and the Search for Origins 5. Toward the Machiavellian Moment: IR's Middle Ages 6. The Sovereign State and the "Westphalian System" in Early- Modern Europe 7. Nation, State, and Empire in the Long Nineteenth Century 8. The Failure of the New (and Old) Diplomacy and the End of European Hegemony 9. Cold War and Post-Cold War III. Contemporary IR and the Uses of History 10. Civilizations, the Myth of Sovereignty, and the Democratic Peace: The End of IR (As We Know It)? Afterword: Description, Prediction, Policy: Does History Matter?