This book presents a collection of new and updated essays on what has come to be known as the territorial explanation of war.

The book argues that a key both to peace and to war lies in understanding the role territory plays as a source of conflict and inter-group violence. Of all the issues that spark conflict, territorial disputes have the highest probability of escalating to war. War, however, is hardly inevitable; much depends on how territorial issues are handled. More importantly, settling territorial disputes and establishing mutually recognized boundaries can produce long periods of peace between neighbors, even if other salient issues arise. While territory is not the only cause of war and wars arise from other issues, territory is one of the main causes of war, and learning how to manage it, can, in principle, eliminate an entire class of wars.

This book will be of great interest to all students of war and conflict studies, causes of war and peace, international security and strategic studies.

John A. Vasquez is Thomas B. Mackie Scholar in International Relations at the University of Illinois, Urbana-Champaign. He is author of The Steps to War (2008) (with Paul Senese) and The War Puzzle Revisited (2009). He has been president of the Peace Science Society (International) and the International Studies Association.

Marie T. Henehan is Director of Internships and Lecturer, Department of Political Science at the University of Illinois, Urbana-Champaign. She is author of Foreign Policy and Congress: An International Relations Perspective and co-editor of The Scientific Study of Peace and War.

This book presents a collection of new and updated essays on what has come to be known as the territorial explanation of war.

The book argues that a key both to peace and to war lies in understanding the role territory plays as a source of conflict and inter-group violence. Of all the issues that spark conflict, territorial disputes have the highest probability of escalating to war. War, however, is hardly inevitable; much depends on how territorial issues are handled. More importantly, settling territorial disputes and establishing mutually recognized boundaries can produce long periods of peace between neighbors, even if other salient issues arise. While territory is not the only cause of war and wars arise from other issues, territory is one of the main causes of war, and learning how to manage it, can, in principle, eliminate an entire class of wars.

This book will be of great interest to all students of war and conflict studies, causes of war and peace, international security and strategic studies.

John A. Vasquez is Thomas B. Mackie Scholar in International Relations at the University of Illinois, Urbana-Champaign. He is author of The Steps to War (2008) (with Paul Senese) and The War Puzzle Revisited (2009). He has been president of the Peace Science Society (International) and the International Studies Association.

Marie T. Henehan is Director of Internships and Lecturer, Department of Political Science at the University of Illinois, Urbana-Champaign. She is author of Foreign Policy and Congress: An International Relations Perspective and co-editor of The Scientific Study of Peace and War.

The question of what causes war has concerned statesmen since the time of Thucydides. The Steps to War utilizes new data on militarized interstate disputes from 1816 to 2001 to identify the factors that increase the probability that a crisis will escalate to war. In this book, Paul Senese and John Vasquez test one of the major behavioral explanations of war--the steps to war--by identifying the various factors that put two states at risk for war. Focusing on the era of classic international politics from 1816 to 1945, the Cold War, and the post-Cold War period, they look at the roles of territorial disputes, alliances, rivalry, and arms races and show how the likelihood of war increases significantly as these risk factors are combined. Senese and Vasquez argue that war is more likely in the presence of these factors because they increase threat perception and put both sides into a security dilemma. The Steps to War calls into question certain prevailing realist beliefs, like peace through strength, demonstrating how threatening to use force and engaging in power politics is more likely to lead to war than to peace.

This book presents a collection of new and updated essays on what has come to be known as the territorial explanation of war.

The book argues that a key both to peace and to war lies in understanding the role territory plays as a source of conflict and inter-group violence. Of all the issues that spark conflict, territorial disputes have the highest probability of escalating to war. War, however, is hardly inevitable; much depends on how territorial issues are handled. More importantly, settling territorial disputes and establishing mutually recognized boundaries can produce long periods of peace between neighbors, even if other salient issues arise. While territory is not the only cause of war and wars arise from other issues, territory is one of the main causes of war, and learning how to manage it, can, in principle, eliminate an entire class of wars.

This book will be of great interest to all students of war and conflict studies, causes of war and peace, international security and strategic studies.

John A. Vasquez is Thomas B. Mackie Scholar in International Relations at the University of Illinois, Urbana-Champaign. He is author of The Steps to War (2008) (with Paul Senese) and The War Puzzle Revisited (2009). He has been president of the Peace Science Society (International) and the International Studies Association.

Marie T. Henehan is Director of Internships and Lecturer, Department of Political Science at the University of Illinois, Urbana-Champaign. She is author of Foreign Policy and Congress: An International Relations Perspective and co-editor of The Scientific Study of Peace and War.

This book presents a collection of new and updated essays on what has come to be known as the territorial explanation of war.

The book argues that a key both to peace and to war lies in understanding the role territory plays as a source of conflict and inter-group violence. Of all the issues that spark conflict, territorial disputes have the highest probability of escalating to war. War, however, is hardly inevitable; much depends on how territorial issues are handled. More importantly, settling territorial disputes and establishing mutually recognized boundaries can produce long periods of peace between neighbors, even if other salient issues arise. While territory is not the only cause of war and wars arise from other issues, territory is one of the main causes of war, and learning how to manage it, can, in principle, eliminate an entire class of wars.

This book will be of great interest to all students of war and conflict studies, causes of war and peace, international security and strategic studies.

John A. Vasquez is Thomas B. Mackie Scholar in International Relations at the University of Illinois, Urbana-Champaign. He is author of The Steps to War (2008) (with Paul Senese) and The War Puzzle Revisited (2009). He has been president of the Peace Science Society (International) and the International Studies Association.

Marie T. Henehan is Director of Internships and Lecturer, Department of Political Science at the University of Illinois, Urbana-Champaign. She is author of Foreign Policy and Congress: An International Relations Perspective and co-editor of The Scientific Study of Peace and War.

The question of what causes war has concerned statesmen since the time of Thucydides. The Steps to War utilizes new data on militarized interstate disputes from 1816 to 2001 to identify the factors that increase the probability that a crisis will escalate to war. In this book, Paul Senese and John Vasquez test one of the major behavioral explanations of war--the steps to war--by identifying the various factors that put two states at risk for war. Focusing on the era of classic international politics from 1816 to 1945, the Cold War, and the post-Cold War period, they look at the roles of territorial disputes, alliances, rivalry, and arms races and show how the likelihood of war increases significantly as these risk factors are combined. Senese and Vasquez argue that war is more likely in the presence of these factors because they increase threat perception and put both sides into a security dilemma. The Steps to War calls into question certain prevailing realist beliefs, like peace through strength, demonstrating how threatening to use force and engaging in power politics is more likely to lead to war than to peace.