The Arc of War The Arc of War Origins, Escalation, and Transformation jack s. levy and william r. thompson the university of chicago press chicago and london jack s. levy is the Board of Governors’ Professor of Political Science at Rutgers University and former president of the International Studies Association (2007–8). william r. thompson is Distinguished Professor and the Donald A. Rogers Professor of Political Science at Indiana University and former president of the International Studies Association (2005–6). The University of Chicago Press, Chicago 60637 The University of Chicago Press, Ltd., London © 2011 by The University of Chicago All rights reserved. Published 2011. Printed in the United States of America 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 isbn-13: 978-0-226-47628-5 (cloth) isbn-13: 978-0-226-47629-2 (paper) isbn-10: 0-226-47628-6 (cloth) isbn-10: 0-226-47629-4 (paper) Library of Congress Cataloging-in-Publication Data Levy, Jack S., 1948– The arc of war : origins, escalation, and transformation / Jack S. Levy and William R. Thompson. p. cm. Includes bibliographical references and index. isbn-13: 978-0-226-47628-5 (cloth : alk. paper) isbn-10: 0-226-47628-6 (cloth : alk. paper) isbn-13: 978-0-226-47629-2 (pbk. : alk. paper) isbn-10: 0-226-47629-4 (pbk. : alk. paper) 1. War and civilization. 2. War—History. 3. War—Sociological aspects. 4. Social evolution. I. Thompson, William R. II. Title. cb481.l48 2011 909—dc23 2011020001 a The paper used in this publication meets the minimum requirements of the American National Standard for Information Sciences—Permanence of Paper for Printed Library Materials, ansi z39.48-1992. to kim, partner in friendship, love, and life—jsl and to karen, despite all the celery crunching and the tachophobia on the slopes—wrt Contents List of Tables and Figures ix Acknowledgments xiii chapter 1. The Evolution of War 1 chapter 2. The Origins of War 19 chapter 3. Evolutionary and Coevolutionary Processes 54 chapter 4. The First Two Agrarian Warfare Accelerations 87 chapter 5. The Third Evolutionary Acceleration 126 chapter 6. The Coevolution of the Western Military Trajectory 155 chapter 7. Nonwestern Military Trajectories 186 chapter 8. The Coevolution of War, Past and Future 207 Notes 219 References 243 Index 273 Tables and Figures figures Figure 1.1 Our argument / 2 Figure 1.2 Estimated battle deaths by century since 3000 BCE / 7 Figure 1.3 Frequency of great power war by decade, 1490–2010 / 8 Figure 1.4 Severity of great power war by quarter century / 8 Figure 1.5 Frequency of types of war, 1820s–2000s / 9 Figure 2.1 The origins of war / 52 Figure 3.1 The coevolution of war, threat environment, military organization, weaponry, political organization, and political economy / 56 Figure 3.2 Coevolutionary process / 63 Figure 3.3 Organizational/weaponry complexity and the costs of war between industrialized states / 71 Figure 3.4 The evolution of war / 76 Figure 8.1 Another look at the coevolutionary complex / 213 tables Table 1.1 Selected major battle attributes / 6 Table 2.1 Cioffi-Revilla’s evidence for early warfare / 21 Table 2.2 Ferguson’s evidence for early warfare / 22 Table 2.3 Segmentation and warfare among foraging groups / 32 Table 2.4 Marriage payments and warfare among foraging groups / 33 Table 2.5 Carneiro’s single versus multiple village chiefdoms distinctions / 35
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