ELLSWORTH AIR FORCE BASE, S.D. -- (Left to right) Senior Airman Hugh Blacketor, 28th Civil Engineer Squadron heating, ventilation and air-conditioning journeyman, begins removing simulated contaminated mission oriented protective posture gear from Airman 1st Class Michael Mays, 28 CES structural apprentice, during a phase II operational readiness exercise, Aug. 24. The MOPP gear is designed to protect Airmen from a chemical attack. (U.S. Air Force photo/Airman 1st Class Anthony Sanchelli)