This book offers the most comprehensive study to date of peacekeeping over time and across all regions of the world. Hultman, Kathman, and Shannon provide the most comprehensive analysis, to date, of the extent to which peacekeeping operations mitigate violence. Readers will find both an understanding of how peacekeeping operations can effectively reduce the scourge of war across the globe and an understanding that peacekeepers face real limitations in bringing peace to the toughest conflicts of our time.