A U.S. Soldier, left, with the 379th Chemical Company, based in Chicago, scrubs down a HMMWV in decontamination operations conducted during exercise Red Dragon at Fort McCoy, Wis., Aug. 11, 2013. Red Dragon is an annual Department of Defense and U.S. Army Reserve Command homeland defense exercise designed to train Army Reserve chemical, biological, radiological and nuclear response assets and supporting civilian authorities. (U.S. Army photo by Sgt. Lisa Rodriguez Presley/Released)