Throughout the history of warfare, combatants have sought out higher ground. With the development of military drones, the United States and other powers now have access to the highest ground: the sky itself. The incredible and sobering power of drones as weapons, both as tools of surveillance and as delivery systems for missiles, is explored in this book. Readers will be fascinated by the history of drones, their current usage in hot spots around the globe, and their possible future incarnations. The coverage of the very controversial ethical and moral issues surrounding drone use also makes this book a valuable resource.