An unidentified observer controller trainer, left, watches 438th Chemical Company Indiana National Guard soldiers set up their decontamination tents during 81st Troop Command's emergency response unit validation training at Camp Atterbury, Ind., Aug. 23, 2011. The soldiers are also part of the decontamination team of the 19th CERFP or Chemical, Biological, Nuclear, Radiological and high-yield Explosive Enhanced Response Force Package, which is a mix of Air and Army Guard troops throughout Indiana.