MASK MAN A soldier wearing a gas mask prepares to enter a chamber of tear gas during training on Fort Bragg, N.C., Oct. 3, 2011. The soldier, a medic, is assigned to the 82nd Airborne Division’s 1st Brigade Combat Team. Soldiers must periodically show they are proficient at donning and sealing a gas mask under the duress of contact with a gas irritant such as tear gas. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 921819-K-AOL79-634.jpg Photo Gallery