Air Force Master Sgt. David McWilliams, a first sergeant with the 379th Expeditionary Communications Squadron, portrays a victim in an active shooter event during an antiterrorism training exercise at Al Udeid Air Base, Qatar, Nov. 3, 2016. McWilliams wore moulage which is a technique of applying fake injuries used for the purpose of training emergency responders and medical personnel.

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Size: 1154px × 1734px
Photo credit: © Nelly George / Alamy / Afripics
License: Licensed
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