U.S. Army Soldiers from the 83rd Chemical Battalion, from Fort Stewart, Ga., conduct search and rescue operations at the Muscatatuck Urban Training Center during exercise Vibrant Response 14, July 24, 2014. The exercise evaluated the ability of Joint Task Force Civil Support and other Department of Defense forces to respond to multiple catastrophic events in a major metropolitan city involving a chemical, biological, radiological and nuclear incident. (Department of Defense photo by U.S. Navy Petty Officer 1st Class Brian Dietrick/Released)