Master Sgt. Devin Ashford, 4th Communications Squadron operations flight chief, inspects his gas mask March 26, 2019, at Seymour Johnson Air Force Base, North Carolina. The 4th CS took part in an “ability to survive and operate” exercise that is intended to teach members how to don protective gear in the event of a chemical, biological, radiologic or nuclear threat and how to perform their duties in the equipment.

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Photo credit: © Apple White / Alamy / Afripics
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Keywords: 4fw, 4th, archive, armed, cs, defence, fighter, forces, johnson, military, reportage, servicemen, seymour, sjafb, usa, wing