02 Apr

File:U.S. Air Force Master Sgt. Dwayne Ayers, right, assigned to the 169th Civil Engineer Squadron, gives instructions to Airmen during the gas mask confidence chemical warfare training at McEntire Joint National 080209-F-WT236-008.jpg

U.S. Air Force Master Sgt. Dwayne Ayers, right, assigned to the 169th Civil Engineer Squadron, gives instructions to Airmen during the gas mask confidence chemical warfare training at McEntire Joint National 080209-F-WT236-008.jpg

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