Harold Delcastillo with Chemical Biological Incident Force, CBIRF, was pinned to the rank of sergeant during a promotion ceremony at Naval Support Facility at Indian Head, Md. Dec. 1, 2017. Delcastillo works as a inventory specialist for the supply platoon at CBIRF. (Official USMC photo by Cpl. Maverick Mejia)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: cbirf, promotions