Soldiers stand behind of a camera by Unmanned Aerial System 'Hunter' during an official presentation by the German and U.S. Unmanned Aerial Systems (UAS) at the U.S. military base in Vilseck-Grafenwoehr October 8, 2013. Drone has a wing-spread of 10.44 metre, an aircraft speed of about 185 km/h and was used first time 1999 in Kosovo. REUTERS/Michaela Rehle (GERMANYMILITARY - Tags: POLITICS) MILITARY)