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 widely used and acclaimed text reader brings together some of the best work on the onset of war, the expansion of war, the conditions of peace, and the termination and impact of war. Editorial commentary on the major findings and the statistical analysis used in each study teaches students how to read the article so that they can become literate in social science methods. A learning package in the appendix provides a programmed text to teach students how to interpret tables, read basic statistics, and conduct elementary data analysis. Correlates of War data on European countries is provided, and a methodological table of contents allows instructors to assign articles from the easiest (simple percentages) to the most advanced (time series and formal modeling).

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.

John A. Vasquez explains the processes that cause the spread of interstate war by looking at how contagion worked to bring countries into the First World War. Analysing all the key states that declared war, the book is comprised of three parts. Part I lays out six models of contagion: alliances, contiguity, territorial rivalry, opportunity, 'brute force' and economic dependence. Part II then analyses in detail the decision making of every state that entered the war from Austria-Hungary in 1914 to the United States and Greece in 1917. Part III has two chapters - the first considers the neutral countries, and the second concludes the book with an overarching theoretical analysis, including major lessons of the war and new hypotheses about contagion. This book will be of great interest to students and scholars of international relations, conflict studies and international history, especially those interested in the spread of conflict, or the First World War.

The First World War had profound consequences both for the evolution of the international system and for domestic political systems. How and why did the war start? Offering a unique interdisciplinary perspective, this volume brings together a distinguished group of diplomatic historians and international relations scholars to debate the causes of the war. Organized around several theoretically based questions, it shows how power, alliances, historical rivalries, militarism, nationalism, public opinion, internal politics, and powerful personalities shaped decision-making in each of the major countries in the lead up to war. The emphasis on the interplay of theory and history is a significant contribution to the dialogue between historians and political scientists, and will contribute to a better understanding of the war in both disciplines.

This book provides an intellectual history of international relations theory from 1919 to the present, examining the dominance of realist theories, and their limited ability to explain world politics accurately. The volume presents the original text of John Vasquez's classic 1983 volume, The Power of Power Politics, analyzing classical realism and quantitative international politics, plus six new chapters covering the most important intellectual currents relevant to the debate on realism. This book is a major contribution to debates over realism in international relations, of interest to students as well as scholars.

This book provides an intellectual history of international relations theory from 1919 to the present, examining the dominance of realist theories, and their limited ability to explain world politics accurately. The volume presents the original text of John Vasquez's classic 1983 volume, The Power of Power Politics, analyzing classical realism and quantitative international politics, plus six new chapters covering the most important intellectual currents relevant to the debate on realism. This book is a major contribution to debates over realism in international relations, of interest to students as well as scholars.

The First World War had profound consequences both for the evolution of the international system and for domestic political systems. How and why did the war start? Offering a unique interdisciplinary perspective, this volume brings together a distinguished group of diplomatic historians and international relations scholars to debate the causes of the war. Organized around several theoretically based questions, it shows how power, alliances, historical rivalries, militarism, nationalism, public opinion, internal politics, and powerful personalities shaped decision-making in each of the major countries in the lead up to war. The emphasis on the interplay of theory and history is a significant contribution to the dialogue between historians and political scientists, and will contribute to a better understanding of the war in both disciplines.

John A. Vasquez s The War Puzzle provided one of the most important scientific analyses of the causes of war of the last two decades. The War Puzzle Revisited updates and extends his groundbreaking work, reviewing recent research on the onset and expansion of war and the conditions of peace. Vasquez describes systematically those factors associated with wars to see if there is a pattern that suggests why war occurs, and how it might be avoided, delineating the typical path by which relatively equal states have become embroiled in wars in the modern global system. The book uses the large number of empirical findings generated in the last twenty-five years as the basis of its theorizing, and integrates these research findings so as to advance the scientific knowledge of war and peace."

John A. Vasquez s The War Puzzle provided one of the most important scientific analyses of the causes of war of the last two decades. The War Puzzle Revisited updates and extends his groundbreaking work, reviewing recent research on the onset and expansion of war and the conditions of peace. Vasquez describes systematically those factors associated with wars to see if there is a pattern that suggests why war occurs, and how it might be avoided, delineating the typical path by which relatively equal states have become embroiled in wars in the modern global system. The book uses the large number of empirical findings generated in the last twenty-five years as the basis of its theorizing, and integrates these research findings so as to advance the scientific knowledge of war and peace."

John A. Vasquez explains the processes that cause the spread of interstate war by looking at how contagion worked to bring countries into the First World War. Analysing all the key states that declared war, the book is comprised of three parts. Part I lays out six models of contagion: alliances, contiguity, territorial rivalry, opportunity, 'brute force' and economic dependence. Part II then analyses in detail the decision making of every state that entered the war from Austria-Hungary in 1914 to the United States and Greece in 1917. Part III has two chapters - the first considers the neutral countries, and the second concludes the book with an overarching theoretical analysis, including major lessons of the war and new hypotheses about contagion. This book will be of great interest to students and scholars of international relations, conflict studies and international history, especially those interested in the spread of conflict, or the First World War.

""The Steps to War" is a highly creative, well-tested, and strongly persuasive synthesis of the last two generations' empirical analysis of the war onset phenomenon. Let's see if the next generation can do better, or as well, as this superb summation by Senese and Vasquez of their own work of the last decade."--William R. Thompson, Indiana University

"This is a major contribution to the literature on the causes of interstate war. It advances a powerful theory that is informed by a masterful review and synthesis of the quantitative literature and tested by sophisticated empirical methods. It will be a core component of the conflict analysis curriculum for years to come."--Jack S. Levy, Rutgers University

"This is an important book. Senese and Vasquez draw together a great deal of empirical work probing the steps to war theory, a highly regarded and long-lived theory of war and international relations. The book will be widely read, widely cited, and will spark a lot of follow-up work. It will be used by every quantitative researcher in international politics, and probably by a lot of nonquantitative researchers as well."--Douglas Lemke, Pennsylvania State University

This invaluable text assesses the current research and theory on the causes of both war and peace. In a completely new set of chapters, leading international relations scholars explore the role of territorial disputes, power, alliances, arms races, rivalry, and nuclear weapons in bringing about war; the outcomes and consequences of war; and the factors that promote peace, including democracy, norms, capitalist economies, and stable borders. The third edition includes a new section on emerging trends in research on cyber war, the environment and climate change, leaders, war financing, and trends in interstate conflict. Reviewing fifty years of scientific research, the contributors provide an accessible and up-to-date overview of current knowledge and an agenda for future research.

This invaluable text assesses the current research and theory on the causes of both war and peace. In a completely new set of chapters, leading international relations scholars explore the role of territorial disputes, power, alliances, arms races, rivalry, and nuclear weapons in bringing about war; the outcomes and consequences of war; and the factors that promote peace, including democracy, norms, capitalist economies, and stable borders. The third edition includes a new section on emerging trends in research on cyber war, the environment and climate change, leaders, war financing, and trends in interstate conflict. Reviewing fifty years of scientific research, the contributors provide an accessible and up-to-date overview of current knowledge and an agenda for future research.

Introducing students to the scientific study of peace and war, this exciting new reader provides an overview of important and current scholarship in this dynamic area of study. Focusing on the factors that shape relationships between countries and that make war or peace more likely, this collection of articles by top scholars explores such key topics as dangerous dyads, alliances, territorial disputes, rivalry, arms races, democratic peace, trade, international organizations, territorial peace, and nuclear weapons. Each article is followed by the editors' commentary: a "Major Contributions" section highlights the article's theoretical advances and relates each study to the broader literature, while a "Methodological Notes" section carefully walks students through the techniques used in the analysis. Methodological topics include research design, percentages, probabilities, odds ratios, statistical significance, levels of analysis, selection bias, logit, duration models, and game theory models.