U.S. Marines with 1st Battalion, 5th Marine Regiment, 1st Marine Division, attached to Marine Rotational Force-Southeast Asia, alongside Singapore Guardsmen with 3rd Battalion Singapore Guards, 7th Singapore Infantry Brigade, conduct the field training exercise for Valiant Mark 25 at SAFTI City Training Facility, Singapore, March 26, 2025. SAFTI City, the premier urban training facility in Southeast Asia, is one of the largest and most technologically advanced facilities of its kind in the world. U.S. Marines with MRF-SEA was the first foreign partner force to train at the facility during Valiant Mark 25. Valiant Mark is an annual, bilateral training exercise designed to enhance interoperability, build mutual defense capabilities, and strengthen military-to-military relationships between the U.S. Marine Corps and Singapore Armed Forces. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (U.S. Marine Corps video by Sgt. Shaina Jupiter)

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IMEFSingapore1st MarDivValiant MarkMRFSEAVALIANT MARK 25