JTAC
Tech. Sgt. Francisco Corona, 6th Combat Training Squadron Tactical Air Control Party, and Staff Sgt. David Dunn, 321st Special Tactics Squadron combat controller, check the frequency on their radios during the Joint Terminal Air Controller Advanced Instructor Course at the Nevada Test and Training Range Jan. 28, 2013. Both Airmen are JTAC qualified and are experts in controlling attacks from the air and from artillery. (U.S. Air Force photo by Staff Sgt. William P. Coleman)