U.S. Air Force combat controllers from the 23rd Special Tactics Squadron, Hurlburt Field, Fla., perform air traffic control radio transmissions to an A-10C Thunderbolt II pilot of the 354th Fighter Squadron, Davis-Monthan Air Force Base, Ariz., approaching an austere landing strip during training at White Sands Missile Range, N.M., Dec. 4, 2014. The combat controllers set up the landing strip as part of their initial and reoccurring training. (U.S. Air Force photo by Airman 1st Class Chris Massey/Released)