This book examines the political, economic, and military factors that have contributed to thirty-seven years of protracted violent conflict in Colombia. Using four years of field research, and more than two hundred interviews, Nazih Richani examines Colombia's "war system"—the systemic interlacing relationship among actors in conflict, their respective political economy, and also the overall political economy of the system they help in creating. Several key questions are raised, including when and why do some conflicts protract, and what types of socioeconomic and political configurations make peaceful resolutions difficult to obtain? Also addressed are the lessons of other protracted conflicts, such as those found in Lebanon, Angola, and Italy. In this expanded second edition Richani contributes new chapters looking at developments in Colombia since the book's initial publication a decade ago and a look at the challenges for peace that lie ahead.