Soldiers from the 11th Engineer Battalion from Fort Benning, Ga., decontaminate a simulated casualty here as part of Vibrant Response 13-2 Aug. 13. After the casualties were decontaminated, their simulated injuries were treated by the 546th Medical Company (Area Support). Approximately 5,700 service members and civilians from the military and other local, state and federal agencies are training to respond to a catastrophic domestic incident. (U.S. Army photo by Spc. Bradley J. Wancour, 13th Public Affairs Detachment)