U.S. Air Force Senior Airman Corban Caliguire and Tech. Sgt. Aaron Switzer, 21st Special Tactics Squadron joint terminal attack controllers, from Pope Field, N.C., call for an A-10 Thunderbolt II to due a show of force during a close air support training mission Sept. 23, 2011, at the Nevada Test and Training Range. Joint Terminal Attack Controllers perform proficiency training with U.S. Air Force Weapons School students during the close air support phases of the Weapons School six-month, graduate-level instructor course. (U.S. Air Force photo by Tech. Sgt. Michael R. Holzworth/Released)