A Black Hawk helicopter lands for re-fueling operations. Aug. 1, during Vibrant Response 14 at Forward Operating Base Nighthawk, Camp Atterbury, Ind. 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. Dani Salvatore, 27th Public Affairs Detachment)