Soldiers of 1st Battalion, 6th Infantry Regiment, 4th Brigade, 1st Armored Division, Fort Bliss, Texas, play opposing forces May 7, 2013, at the Combined Arms Collective Training Facility - Zamania on McGregor Range, N.M. They were defending the area against a training assault by the 1st Battalion, 35th Armored Regiment, 2nd Brigade, 1st AD. (U.S. Army photo by Sgt. Robert Golden, 16th Mobile Public Affairs Detachment)