A casualty with a simulated improvised explosive device attached, lies outside the rear entry control point of the staging area guarded by 1st Stryker Brigade Combat Team, 25th Infantry Division Soldiers, during Decisive Action Rotation 15-03 at the National Training Center, Fort Irwin, Calif., Jan. 16, 2015. The simulated improvised explosive device allows for various training scenarios that Soldiers may encounter in wartime operations. (U.S. Army photo by Spc. Ashley Marble/Released)