Airmen unload a CV-22B Osprey in Keflavik, Iceland, June 21, 2013. The CV-22 is a versatile, self-deployable, tiltrotor aircraft that offers the speed, range, and mobility of a fixed-wing aircraft while incorporating the maneuverability of a rotary-wing aircraft. (U.S. Air Force photo by Senior Airman Laura Yahemiak/Released)