Photos

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Emergency Department personnel at Naval Hospital Twentynine Palms conduct triage and initiate treatment on two role-playing Marines with simulated critical injuries during the Semper Durus 2025 regional training exercise, May 21. The casualties arrived via air medical evacuation following a notional explosion and friendly fire incident on Range 112, part of a mass casualty scenario coordinated with Marine Corps Air Ground Combat Center (MCAGCC) and other base tenants. After being transferred from the helipad by a corpsman and duty driver, the simulated patients were brought through the ambulance entrance, where medical teams activated the hospital’s Mass Casualty Protocol. The exercise provided a realistic test of interagency coordination, emergency medical response, and the hospital’s capacity to manage high-pressure incidents in real time (U.S. Navy photo by Christopher C. Jones, NHTP/NMRTC Twentynine Palms public affairs officer).