A U.S. Navy Hospital Corpsman with 1st Battalion, 5th Marine Regiment, 1st Marine Division, uses a battlefield assisted trauma documentation kit to document care during a simulated mass casualty exercise during Exercise Steel Knight 25.

Steel Knight is an annual exercise that strengthens the Navy-Marine Corps team's ability to respond forward, integrate across domains, and sustain Marine Air-Ground Task Force readiness.

251207-M-AV203-1118.JPG Photo By: Cpl. Michael Bartman

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Camp Pendleton - A U.S. Navy Hospital Corpsman with 1st Battalion, 5th Marine Regiment, 1st Marine Division, uses a battlefield assisted trauma documentation kit to document care during a simulated mass casualty exercise during Exercise Steel Knight 25 at Marine Corps Base Camp Pendleton, California, Dec. 6, 2025. Steel Knight is an annual exercise that strengthens the Navy-Marine Corps team's ability to respond forward, integrate across domains, and sustain Marine Air-Ground Task Force readiness. (U.S. Marine Corps photo by Cpl. Michael Bartman)

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