War and Religion: A Very Short Introduction traces the history of religion and war. Is religion a force for war or a force for peace? From the crusades to Sri Lanka's civil war, religion has been involved in some of the most terrible wars in history. Yet from the Mahabharata to just war theory, religion has also provided ethical frameworks to moderate war, while some of the bravest pacifists have been deeply religious people. Ranging from ancient history to modern day conflicts, this VSI offers a nuanced view on these issues that have had such weight in the past, and which continue to shape the present and future.