An MQ-9 Reaper remotely piloted drone aircraft performs aerial maneuvers over Creech Air Force Base, Nevada, U.S., June 25, 2015. Picture taken June 25, 2015. U.S. Air Force/Senior Airman Cory D. Payne/Handout via REUTERS ATENTION EDITORS – THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS – RTS16XO1