For as long as people have been working to bring peace to areas suffering long-standing, violent conflict, there have also been those working to spoil this peace. These "spoilers" work to disrupt the peace process, and often this disruption takes the form of violence on a catastrophic level. Galia Golan and Gilead Sher offer a broader perspective. They examine this phenomenon by analyzing groups who have spoiled or attempted to spoil peace efforts...