A German Bundeswehr armed forces pilot operator (L) and an aerial vehicle operator control a Heron 1 unmanned aerial vehicle (UAV) on a mission, from their Advance Ground Control Station at 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. REUTERS/Fabrizio Bensch (AFGHANISTAN - Tags: MILITARY CONFLICT)