Jon Culberson, assistant chief of Fire and Emergency Services on Joint Base Myer Henderson-Hall, teaches police and security officers how to bind up a wound by adding a special kind of cloth that expands when it comes in contact with liquid at Memorial Chapel April 26 on the Fort Myer portion of JBM-HH. JBM-HH first responders spent the day learning new procedures for triaging and evacuating the wounded during crisis and hostile situations, such as an active shooter event. (Joint Base Myer-Henderson PAO photo by Delonte Harrod)

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