Staff Sgt. Christopher Windley, 23d Force Support Squadron fitness specialist, left, performs a seal check on Staff Sgt. Ryan Cox, 820th Combat Operations Squadron combat arms instructor, Feb. 1, 2018, at Moody Air Force Base, Ga. Airmen participated in a chemical, biological, radiological and nuclear defense (CBRNE) class to better prepare them to combat enemy attacks while also familiarizing them with mission-oriented protective posture (MOPP) gear. (Air Force photo by Airman Eugene Oliver)

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