The increased military employment of remotely operated aerial vehicles, also known as drones, has raised a wide variety of important ethical questions, concerns, and challenges. Many of these have not yet received the serious scholarly examination such worries rightly demand. This volume attempts to fill that gap through sustained analysis of a wide range of specific moral issues that arise from this new form of killing by remote control. Many, for example, are troubled by the impact that killing through the mediated mechanisms of a drone half a world away has on the pilots who fly them. What happens to concepts such as bravery and courage when a war-fighter controlling a drone is never exposed to any physical danger? This dramatic shift in risk also creates conditions of extreme asymmetry between those who wage war and those they fight. What are the moral implications of such asymmetry on the military that employs such drones and the broader questions for war and a hope for peace in