Philosophers have wrestled over the morality and ethics of war for nearly as long as human beings have been waging it. The death and destruction that unmanned warfare entails magnifies the moral and ethical challenges we face in conventional warfare and everyday society. Intrinsically linked are questions and perennial problems concerning what justifies the initial resort to war, who may be legitimately targeted in warfare, who should be permitted to serve the military, the collateral effects of military weaponry and the methods of determining and dealing with violations of the laws of war. This book provides a comprehensive and unifying analysis of the moral, political and social questions concerning the rise of drone warfare.