The causes of war - why people fight - is one of the big questions of human existence. Azar Gat's book, ranging from the beginning of prehistory to the 21st century, offers a definitive answer to the lingering mystery.

New approaches to understanding war and peace in the changing international system. What causes war? How can wars be prevented? Scholars and policymakers have sought the answers to these questions for centuries. Although wars continue to occur, recent scholarship has made progress toward developing more sophisticated and perhaps more useful theories on the causes and prevention of war. This volume includes essays by leading scholars on contemporary approaches to understanding war and peace. The essays include expositions, analyses, and critiques of some of the more prominent and enduring explanations of war. Several authors discuss realist theories of war, which focus on the distribution of power and the potential for offensive war. Others examine the prominent hypothesis that the spread of democracy will usher in an era of peace. In light of the apparent increase in nationalism and ethnic conflict, several authors present hypotheses on how nationalism causes war and how such wars can be controlled. Contributors also engage in a vigorous debate on whether international institutions can promote peace. In a section on war and peace in the changing international system, several authors consider whether rising levels of international economic independence and environmental scarcity will influence the likelihood of war.

Written by leading scholars in the field, Causes of War provides the first comprehensive analysis of the leading theories relating to the origins of both interstate and civil wars. Utilizes historical examples to illustrate individual theories throughout Includes an analysis of theories of civil wars as well as interstate wars -- one of the only texts to do both Written by two former International Studies Association Presidents

Azar Gat sets out to resolve one of the age-old questions of human existence: why people fight and can they stop. Spanning warfare from prehistory to the 21st century, the book shows that, neither an irresistible drive nor a cultural invention, deadly violence and warfare have figured prominently in our behavioural toolkit since the dawn of our species. People have always alternated between cooperation, peaceful competition, and violence to attain evolution-shaped human desires. A marked shift in the balance between these options has occurred since the onset of the industrial age. Rather than modern war becoming more costly (it hasn't), it is peace that has become more rewarding. Scrutinizing existing theories concerning the decline of war - such as the 'democratic peace' and 'capitalist peace' - Gat shows that they in fact partake of a broader Modernization Peace that has been growing since 1815. By now, war has disappeared within the world's most developed areas. Finally, Gat explains why the Modernization Peace has been disrupted in the past, as during the two World Wars, and how challenges to it may still arise. They include claimants to alternative modernity - such as China and Russia - anti-modernists, and failed modernizers that may spawn terrorism, potentially unconventional. While the world has become more peaceful than ever before, there is still much to worry about in terms of security and no place for complacency.

Why do people go to war? Is it rooted in human nature or is it a late cultural invention? And what of war today: is it a declining phenomenon or simply changing its shape? This book sets out to find definitive answers to these questions in an attempt to unravel the riddle of war throughout human history.

Violent conflicts today are complex and increasingly protracted, involving more nonstate groups and regional and international actors. It is estimated that by 2030—the horizon set by the international community for achieving the Sustainable Development Goals—more than half of the world’s poor will be living in countries affected by high levels of violence. Information and communication technology, population movements, and climate change are also creating shared risks that must be managed at both national and international levels. Pathways for Peace is a joint United Nations†“World Bank Group study that originates from the conviction that the international community’s attention must urgently be refocused on prevention. A scaled-up system for preventive action would save between US$5 billion and US$70 billion per year, which could be reinvested in reducing poverty and improving the well-being of populations. The study aims to improve the way in which domestic development processes interact with security, diplomacy, mediation, and other efforts to prevent conflicts from becoming violent. It stresses the importance of grievances related to exclusion—from access to power, natural resources, security and justice, for example—that are at the root of many violent conflicts today. Based on a review of cases in which prevention has been successful, the study makes recommendations for countries facing emerging risks of violent conflict as well as for the international community. Development policies and programs must be a core part of preventive efforts; when risks are high or building up, inclusive solutions through dialogue, adapted macroeconomic policies, institutional reform, and redistributive policies are required. Inclusion is key, and preventive action needs to adopt a more people-centered approach that includes mainstreaming citizen engagement. Enhancing the participation of women and youth in decision making is fundamental to sustaining peace, as well as long-term policies to address the aspirations of women and young people.

The human race has often put a high value on struggle, strife, turmoil, and excitement. Peace has been regarded as a utopian, unattainable, perhaps dull ideal or as some random element over which we have no control. However, the desperate necessities of the nuclear age have forced us to take peace seriously as an object of both personal and national policy. Stable Peace attempts to answer the question, If we had a policy for peace, what would it look like? A policy for peace aims to speed up the historically slow, painful, but persistent transition from a state of continual war and turmoil to one of continual peace. In a stable peace, the war-peace system is tipped firmly toward peace and away from the cycle of folly, illusion, and ill will that leads to war. Boulding proposes a number of modest, easily attainable, eminently reasonable policies directed toward this goal. His recommendations include the removal of national boundaries from political agendas, the encouragement of reciprocal acts of good will between potential enemies, the exploration of the theory and practice of nonviolence, the development of governmental and nongovernmental organizations to promote peace, and the development of research in the whole area of peace and conflict management. Written in straightforward, lucid prose, Stable Peace will be of importance to politicians, policy makers, economists, diplomats, all concerned citizens, and all those interested in international relations and the resolution of conflict.

Argues that the key to the formation of an empire lies in a society's capacity for collective action, resulting from people banding together to confront a common enemy, and describing how the growth of empires leads to a growing dichotomy between rich and poor, increasing conflict instead of cooperation, and inevitable dissolution. Reprint. 25,000 first printing.

How do enduring rivalries between states affect international relations?