627th Civil Engineer Squadron Airmen simulate experiencing an attack by a suicide bomber during their internal Capstone exercise April 20, 2017 at Joint Base Lewis-McChord, Wash. The capstone was a validation of the unit’s last several training days for the 627th CES have included land navigation training and air base defense training. ( Air Force photo/ Staff Sgt. Naomi Shipley)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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