Edited by one of the most renowned experts in the field, this collection helps readers understand the causes of wars and examines the question: can we make war obsolete? With new readings on terrorism and unconventional warfare, this volume introduces readers to the types of political violence that have come back with such horrifying force in the beginning of the 21st Century. DOES WAR HAVE A FUTURE?; ANARCHY AND POWER; INTERNATIONAL INSTITUTIONS AND COOPERATION; PSYCHOLOGY AND CULTURE; ECONOMIC INTERESTS AND INTERDEPENDENCE; POLITICAL IDEOLOGY AND IDENTITY; MILITARY TECHNOLOGY; TERRORISM AND UNCONVENTIONAL WARFARE. Anyone interested in understanding why political violence--terrorism, warfare, unconventional warfare--happens and if it can be stopped.