Tactical Air Control Party members from the 7th Air Support Operations Squadron, Fort Bliss, Texas, monitor radios from a defensive fighting position while Joint Terminal Attack Controllers direct incoming aircraft to simulated targets throughout the National Training Center at Fort Irwin, Calif., June 12, 2015. Exercise Green Flag runs at this location ten times annually, and places JTACs on the ground in support of Army Brigade Combat Teams receiving vital pre-deployment training. (U.S. Air Force photo by Senior Airman Joshua Kleinholz)