U.S. Soldiers with the 302nd Maneuver Enhancement Brigade get a phone network operational at the Joint Operations Center for Task Force 51, U.S. Army North (Fifth Army), as they begin exercise Vibrant Response 13-2 at Camp Atterbury, Ind., July 31, 2013. Vibrant Response is a U.S. Northern Command-sponsored field training exercise for chemical, biological, radiological, nuclear and high-yield explosive consequence management forces designed to improve their ability to respond to catastrophic incidents. (U.S. Army photo by Sgt. 1st Class Christopher Dehart/Released)