In “Japan’s Holocaust: History of Imperial Japan’s Mass Murder and Rape During World War II,” Bryan Mark Rigg undertakes a comprehensive exploration of one of the less frequently discussed aspects of World War II—the involvement of the Japanese Army in various severe actions across Asia. Rigg, a historian noted for his unflinching approach to sensitive historical topics, aims to provide a detailed account of these severe incidents. While his intention to illuminate these dark corners of history is commendable, the book’s execution raises several questions regarding its historical balance and interpretive biases.