Does nationalism lead to interstate war? This book challenges the existing presumption about the link between nationalism and war and systematically investigates how popular nationalism affects a country's decision to launch military aggression. In doing so, the book makes a provocative and novel claim that popular nationalism has not only a conflict-inducing effect but also a restraining effect and identifies the conditions under which popular nationalism causes war. Specifically, the book claims that popular nationalism leads to war only when leaders who confront it are very confident about their chance of achieving complete victory in conflict or they are politically vulnerable. If these two conditions are not met, popular nationalism has a restraining effect, making leaders seek the status quo and avoid the use of force.
The book first shows the restraining effect of popular nationalism focusing on China through a survey experiment and an in-depth case study on the territorial dispute between China and Japan in the East China Sea. It then offers a comprehensive historical and contemporary analysis of when popular nationalism's restraining effect turns into a conflict-inducing one through case studies on the War of 1812 and the Falklands War. The book provides important insights into whether popular nationalism could put great powers like the United States and China on a collision course and offers broad policy implications for how we can prevent war driven by popular nationalism.

Jiyoung Ko, PhD is Assistant Professor of Political Science and International Relations at Korea University. Her research focuses on how nationalism affects state interactions in international relations. Her articles analyzing the relationship between nationalism and immigration policy, foreign direct investment, and foreign policy preferences have been published in various leading journals in political science. She was a postdoctoral fellow at the Notre Dame International Security Center and taught at Bates College before joining Korea University. She is an organizer of the Pacific International Politics Conference Online Speaker Series. Ko received her Ph.D. in Political Science from Yale University, and a B.A. and a M.A. in Political Science from Korea University.

Introduction
I. Theoretical Foundations
Ch. 1 Nationalistic Sentiments and Mass Foreign Policy Preferences
Ch. 2 Popular Nationalism, Political Elites' Strategic Calculations, and Conflict Initiation
II. The Restraining Effect of Popular Nationalism: Evidence from China
Ch. 3 Chinese Nationalistic Sentiments and Mass Foreign Policy Preferences: Evidence from Survey Experiment
Ch. 4 Chinese Popular Nationalism and the Territorial Dispute with Japan
III. When Does Popular Nationalism's Restraining Effect Turn into a Conflict-Inducing One? Lessons from History
Ch. 5 Illusion of Complete Victory: Argentine Popular Nationalism and the Falklands War
Ch. 6: Domestic Political Vulnerability and Unwanted War: American Popular Nationalism and the War of 1812
Conclusion
Appendix
References