Phase II Day 3
Airman Benjamin Hutchens and Senior Airman Phillip Butche, 4th Aircraft Maintenance Squadron, review their Airman's Manual after a simulated chemical attack on the flightline during an oerational radiness eercise on Seymour Johnson Air Force Base, N.C., Dec. 10, 2009. Both Airmen are in mission-oriented protective posture level four, which requires them to wear a special suit, rubber over-boots, an MCU-2 gas mask and rubber gloves. (U.S. Air Force photo/Airman 1st Class Rae Perry)