Introduction: Recollections on Method and a Theory of American Foreign Policy Part Ⅰ. America 2. Containment and Internationalism 3. Rollback and Nationalism 4. Predestination for the Labyrinth: Spies and Speculators 5. Rollback Percolates in the Bureaucracy Part Ⅱ. Korea 6. The Southern System 7. The Resistance to the Southern System 8. The Guerrilla Conflict 9. The Northern System 10. The Soviets and North Korea 11. North Korea's China Connection Part Ⅲ. Overtures to June 1950 12. Decent Interval: American Withdrawal, the Border Fighting, and the Guerrilla Suppression 13. "The Speech": Achesonian Deterrence at the Press Club 14. North Korea on the Eve of the War 15. South Korea on the Eve of the War 16. Telltale Taiwan 17. A Quiet Weekend in June: Tokyo, Moscow, and Washington on the Eve of the War 18. Who Started the Korean War? Three Mosaics Part Ⅳ: Epilogue 19. The War for Containment 20. The Political Character of the War: People's Committees and White Pajamas 21. The War for Rollback 22. Conclusion: The Setting Sun