Endowed with natural resources, majestic bodies of fresh water, and a relatively mild climate, the Great Lakes region of Central Africa has also been the site of some of the world's bloodiest atrocities. In Rwanda, Burundi, and the Congo-Kinshasa, decades of colonial subjugation--most infamously under Belgium's Leopold II--were followed by decades of civil warfare that spilled into neighboring countries. When these conflicts lead to horrors such as the 1994 Rwandan genocide, ethnic difference and postcolonial legacies are commonly blamed, but, with so much at stake, such simple explanations...