Based on a MOOC (Massive Open Online Course) designed for both military personnel and non-specialists across the globe, Key Concepts in Military Ethics is structured as a series of `mini-chapters' that cover a huge range of topics and issues: moral dilemmas, military and civilian interactions, freedom of the press, peacekeeping, terrorism and humanitarian intervention. Written by a team of academic experts, many with military experience, the book contains scenarios and case studies, including the Gulf War, the Falklands War, `Ground Zero' in New York City and more conventional theatres of war through history, as well as cyber-terrorism, the role of military contractors and unmanned weapons systems.