U.S. soldiers from Charlie Company 4/17 Infantry, 1st Brigade Combat Team, 1st Armored Division evacuate mock casualties after a simulated improvised explosive device detonated during Operation Iron Focus on Fort Bliss, Texas, April 26, 2012. Iron Focus prepares soldiers for deployment in support of Operation Enduring Freedom. (U.S. Army photo by Spc. Lakeasha Perry/Released).