U.S. Air Force Staff Sgt. Brentt Galloway (left), 455th Expeditionary Civil Engineer Squadron, and Staff Sgt. Renato Sambilay, 455th Expeditionary Medical Operations Squadron, help Senior Airman Michael Gilbert, 455th Expeditionary Medical Operations Squadron, put on his chemical protection suit during a hazardous materials exercise at Bagram Airfield, Afghanistan, April 29, 2010. Sergeant Galloway is deployed from the Oregon Air National Guard, and is from Sherwood, Ore. Sergeant Sambilay is deployed from Nellis Air Force Base, Nev., and is from San Diego, Calif. Airman Gilbert is deployed from Nellis Air Force Base, Nev., and is from Exeter, Calif. (U.S. Air Force photo by/ Master Sgt. Jeromy K. Cross/released)