Religion has been at the heart of many wars and acts of violence throughout history. Why is this such a deep-rooted source of conflict around the world, and what can be done to foster peace between people of different religions instead? Readers are presented with these questions and more to challenge their critical-thinking skills as they learn about the relationship between religion and conflict, from ancient history to the Crusades to the rise of ISIS. Facts and opposing viewpoints are presented in the main text and sidebars, which are enhanced by the use of annotated quotations and primary sources.