Gas chamber training

Sgt. Kenneth J. Hill, a paratrooper assigned to the 82nd Airborne Division's 1st Brigade Combat Team, flaps his arms in the air to remove chemical particles from his uniform after exiting a gas chamber, April 29, 2013, on Fort Bragg, N.C.

(U.S. Army photo by Staff Sgt. Mary Katzenberger/1st BCT, 82nd Abn. Div.)

Done