U.S. Soldiers with the 44th Chemical Company, 2nd Chemical Battalion, 48th Chemical Brigade enter and clear a building of opposing forces during a simulated chemical attack at Fort McCoy, Wis., May 12, 2014, during Patriot Warrior 2014.
Patriot Warrior is a joint reserve component exercise designed to prepare reserve members of all branches for upcoming deployments. (DoD photo by Spc. Robert Farrell, U.S. Army/Released). Original public domain image from Flickr