In the aftermath of a civil war, former enemies are left living side by side—and often the enemy is a son-in-law, a godfather, an old schoolmate, or the community that lies just across the valley. Though the internal conflict in Peru at the end of the twentieth century was incited and organized by insurgent Senderistas, the violence and destruction were carried out not only by Peruvian armed forces but also by civilians. In the wake of war, any given Peruvian community may consist of...