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Keen Sword 27: Simulated Mass Casualty Event
U.S. Marines with Aircraft Rescue and Firefighting, Headquarters and Headquarters Squadron (H&HS), Marine Corps Air Station Iwakuni, and U.S. Navy Sailors with Navy Medical Readiness and Training Unit Iwakuni, 3rd Medical Battalion, 3rd Marine Logistics Group, Marine Wing Support Squadron (MWSS) 171
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U.S. Marines with Aircraft Rescue and Firefighting, Headquarters and Headquarters Squadron (H&HS), Marine Corps Air Station Iwakuni, and U.S. Navy Sailors with Navy Medical Readiness and Training Unit Iwakuni, 3rd Medical Battalion, 3rd Marine Logistics Group, Marine Wing Support Squadron (MWSS) 171, Marine Fighter Attack Squadron (VMFA) 242, and VMFA-121, Marine Aircraft Group 12 participate in a simulated mass casualty exercise during Exercise Keen Sword 27 (KS27) at Marine Corps Air Station Iwakuni, Japan, Oct. 23, 2026. Keen Sword is a routine, biennial bilateral field training exercise with multinational participation, designed to increase readiness and interoperability between the U.S. military and Japan Self-Defense Forces while strengthening the ironclad U.S.-Japan Alliance. (U.S. Marine Corps video by Lance Cpl. Gage Collins)
Attribution: Source: DVIDS Hub — U.S. Department of Defense public-affairs media
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