Unanswered Threats: Underbalancing in International Politics is a groundbreaking book that sheds light on the puzzle of why states throughout history have consistently underestimated dangers to their survival.

By offering a theory based on four domestic-level variables, this book provides a comprehensive explanation for why some states are able to mobilize their material resources effectively while others fail to do so.

With in-depth case studies and rigorous testing of causal schemes, Schweller's work offers a compelling answer to the question of why underbalancing occurs.

This must-read book is essential for anyone interested in understanding the complex dynamics of international politics and the factors that shape state behavior.