Against the backdrop of the ongoing Rohingya crisis, this book takes a close and detailed look at the rise of militant Buddhism in Sri Lanka, Burma and Thailand, and especially at the issues of 'why' and 'how' around it. We are well aware of Christian fundamentalism, militant Judaism and Islamist Salafism-Jihadism. Extremist and violent Buddhism however features only rarely in book-length studies on religion and political violence. Somehow, the very idea of Buddhist monks as the archetypical 'world renouncers' exhorting frenzied mobs to commit acts of violence against perceived 'enemies of the religion' seems to be outright ludicrous. Recent events in Myanmar/Burma, but also in Thailand and Sri Lanka, however indicate that a militant strand of Theravada Buddhism is on the rise. How can this rise be explained, and what role do monks play in that regard? These are the two broad questions that this book explores.