The Ethics of War and Peace is a lively introduction to one of the oldest but still most relevant ethical debates. Focusing on the philosophical questions surrounding the ethics of modern war, Helen Frowe presents contemporary just war theory in a stimulating and accessible way. This 2nd edition includes new material on weapons and technology, and humanitarian intervention, in addition to: theories of self-defence and national defence jus ad bellum, jus in bello and jus post bellum the moral status of combatants the principle of non-combatant immunity and the nature of terrorism and the moral status of terrorists. Each chapter uses examples and concludes with a summary, discussion questions and suggestions for further reading to aid student engagement, learning and revision. The glossary has been expanded to cover the full range of relevant terminology. This is the ideal textbook for students of philosophy and politics approaching this important area for the first time.