This book offers the most comprehensive study to date of peacekeeping over time and across all regions of the world.Civil wars have caused tremendous human suffering in the last century, and the United Nations is often asked to send peacekeepers to stop ongoing violence. Yet despite being the most visible tool of international intervention, policymakers and scholars have little systematic knowledge about how well peacekeeping works. Peacekeeping in the Midst of War offers the most comprehensive analyses of peacekeeping on civil war violence to date. With unique data on different types of violence in civil wars around the world,Peacekeeping in the Midst of Waroffers a rigorous understanding of UN intervention by analysing both wars with and without UN peacekeeping efforts. It also directly measures the strength of UN missions in personnel capacity and constitution. Using large-n quantitative analyses, the book finds that UN peacekeeping missions with appropriately constituted force capacities mitigate violence in civil wars. The authors conclude by analyzing the broader context of UN intervention effectiveness, and conclude that peacekeeping is a more generally effective way to reduce the human suffering associated with civil war.1. Peacekeeping and the Problem of Civil War2. Measuring Peacekeeping Effectiveness3. Mechanisms of Peacekeeping Effectiveness4. Reducing Battlefield Violence5. Reducing Violence against Civilians6. Successes and Failures in Cote d'Ivoire and The Democratic Republic of Congo7. Saving Humanity from Hell?Lisa Hultman,Associate Professor, Department of Peace and Conflict Research, Uppsala University,Jacob D. Kathman,Associate Professor, Department of Political Science, State University of New York at Buffalo,Megan Shannon,Associate Professor of Political Science, University of Colorado BoulderLisa Hultman is Associate Professor of Peace and Conflict Research at Uppsala University. She conducts research on issl'