Soldiers from the 2nd Brigade Combat Team, 1st Infantry Division, pull security during a training exercise at the National Training Center in Fort Irwin, Calif., Feb. 19, 2013. Incorporating Wide Area Security and Combined Arms Maneuver, this training exercise is designed to evaluate 2nd Brigade Combat Team, 1st Infantry Division's capabilities and abilities against an equally sized and equipped adversary. (U.S. Army photo by Sgt. Eric M. Garland/Released)