Air Force Tech Sgt. Donovan Root, 60th Civil Engineer Squadron, pulls the straps tight on Air Force Col. John Klein (left), the commanding officer of the 60th Air Mobility Wing, 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. CBRN training is intended to prepare Airmen for the possibility of a chemical, biological, radiological or nuclear attack.

---

Size: 1609px × 1243px
Photo credit: © Dudley Little / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -ru983, 60amw, afb, air, america, archive, armed, army, couch, defence, force, forces, heide, military, navy, pa, photo, reportage, service, serviceman, servicemen, soldier, states, travis, united, usa, usaf