Armed forces worldwide have started using Unmanned Aerial Vehicles (UAV) on military missions or to spy on enemy targets during a conflict. Over the years, the UAV's have become advanced and sophisticated

 A German Bundeswehr armed forces Heron 1 unmanned aerial vehicle (UAV) takes off for a mission from the Marmal army camp in Mazar-e-Sharif, northern Afghanistan December 11, 2012. German air forces are using the reconnaissance drone aircraft for the ongoing International Security Assistance Force (ISAF) mission.