A German Air Force (GAF) crew chief gives a thumbs up as fellow GAF pilots return from a mission dropping training bombs for close-air support while assisting U.S. Marine Corps joint terminal attack controllers with the 1st Air Naval Gunfire Liaison Company who were assaulting a mock village at Saylor Creek Bomb Range near Mountain Home Air Force Base, Idaho, Oct. 4, 2013, during Mountain Roundup 2013. Mountain Roundup is a multinational exercise focusing on ground operations, close-air support, urban combat, convoy operations and air-to-air training scenarios.