A Navy Landing Craft Air Cushion arrives during Capital Shield 19, on Fort McNair, Washington District of Columbia, Sep. 4, 2019. Capital Shield is an exercise to train and prepare emergency responders in the National Capital Region for chemical exposure and response. ( Marine Corps photo by Lance Cpl. Sarah N. Petrock)

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Photo credit: © APFootage / Alamy / Afripics
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Keywords: cbirf, chemical, commstrat, dc, mcbq, quantico, response, usmc