An A-10 Thunderbolt II from the US Air Force Weapons School at Nellis Air Force Base, Nev., drops a AGM-65 Maverick during a close-air support training mission Sept. 23, 2011, over the Nevada Test and Training Range. US Air Force Weapons School students participate in many combat training missions over the NTTR during the six-month, graduate-level instructor course. (US Air Force photo/Senior Airman Brett Clashman)