In 2010, 60 states had a military drone program. Today at least 113 countries and 65 non-state actors now have access to weaponized drone technologies. Alongside this, established 'drone powers' - the U.S., China, Turkey, and Iran - have expanded their own use of military drones, increasing the sale and deployment of drones around the world. In the De Gruyter Handbook of Drone Warfare, drone expert, policy adviser, and historian, Dr James Patton...