A lieutenant of 1st Battalion, 68th Armor Regiment, 3rd Armored Brigade Combat Team, 4th Infantry Division, pulls security in his sector of fire while an AH-64 Apache helicopter provides close air support during the battalion’s certification course at Camp Buehring, Kuwait, May 1, 2015. The five-day course concluded with lieutenants navigating the desert, performing squad movement attacks and maneuvers, reacting to enemy contact and calling for close air attacks while securing a small village. (U.S. Army photo by Spc. Gregory T. Summers, 3rd ABCT, 4th Infantry Division, Public Affairs)