Groundbreaking exposé of the rapid shift to robot warfare, by a leading antiwar activist. Drone Warfare is the first comprehensive analysis of one of the fastest growing-and most secretive-fronts in global conflict: the rise of robot warfare. In 2000, the Pentagon had fewer than fifty aerial drones; ten years later, it had a fleet of nearly 7,500, and the US Air Force now trains more drone 'pilots' than bomber and fighter pilots combined. Drones are already a $5 billion business in the US alone.