A Macdonald Army Health Center first responder fastens a tourniquet on simulated injured patient during an active shooter exercise at Joint Base Langley-Eustis, Virginia, Nov. 8, 2022. The purpose of this full-scale active shooter exercise was to evaluate the execution of JBLE-Eustis plans, checklists, standard operating procedures and agreements. (U.S. Air Force photo by Staff Sgt. Anthony Nin Leclerec)