Lt. Col. Michael Sheredy(left), commander 366th Training Squadron Detachment 7, re-enlists Tech. Sgt. Christopher Ackerman(right), an Emergency Management School instructor at det. 7 while wearing Mission Oriented Protective Posture in the Chemical Defense Training Facility at Fort Leonard Wood, Mo., Dec. 17. The ceremony took place in Bay 7 of the CDTF, where training with a live nerve agent is typically performed. Sergeant Ackerman’s re-enlistment marked the first time for an Air Force member to re-enlist in the "hot area" since it first opened its doors in September 1999. (U.S. Air Force photo courtesy)