A health service technician, Coast Guardsman Petty Officer 3rd Class (HS3) Shanna Dunn pulls rear security after unloading a mannequin patient from a UH-60 Black Hawk helicopter during a Tactical Combat Casualty Care exercise facilitated by the Maryland Army National Guard in Edgewood, Md., Feb. 8, 2015. As part of a monthly partnership, the pilots and flight crew in C Company, 1-169th facilitate Walter Reed military personnel by providing suitable locations, 9-line medical evacuation (MEDEVAC) support and both familiarization and accessibility to aircraft. (Photo by Staff Sgt. Michael Davis Jr., Maryland National Guard Public Affairs Office)
Staff Sgt. Michael Davis
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