Angela Hurst, public affairs officer at Blue Grass Chemical Activity, monitors mock social media posts during the annual Army Chemical Stockpile Emergency Preparedness Program exercise supported by the Army Chemical Materials Activity September 20, 2017 at Blue Grass Army Depot, Ky.

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Keywords: activity, air, america, archive, armed, army, blue, chemical, cma, csepp, defence, depot, emerge, exercise, force, forces, grass, military, navy, reportage, service, serviceman, servicemen, soldier, states, stockpile, united, usa