A Air Force Airman pulls the hood of his mission-oriented protective posture jacket closed over his gas mask to ensure a proper seal during a chemical, biological, radiological and nuclear defense survival skills training course at Travis Air Force Base, Calif., Sep. 21, 2017. Airmen are refreshed on vital skills that may save their lives while on duty by learning proper ways to put on protective equipment in a timely and efficient manner. ( Air Force photo by Heide Couch)

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Size: 3600px × 4620px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -ru983, 60amw, afb, air, couch, force, heide, pa, photo, travis, usaf