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Planes over water

AIR FORCE PHOTOS

Training that matters

Staff Sgt. Oscar Perez (left) shows Tech Sgt. Chris Howard how to apply the second skin on a gas mask during a chemical warfare training class Apr. 7 at Eielson Air Force Base, Alaska. Chemical warfare training teaches Airmen how to survive and operate in hazardous environments whether deployed or at home station. (U.S. Air Force photo/Senior Airman Christopher Boitz)

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