A Marine with Chemical Biological Incident Response Force, speaks on a radio during Capital Shield 19, on Fort McNair, 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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Keywords: cbirf, chemical, commstrat, dc, mcbq, quantico, response, usmc