ArcaneThunder

About Arcane Thunder

Arcane Thunder 25 is a 2nd Multi-Domain Task Force exercise with U.S. Army and
multinational partners in May 2025 in Utska, Poland; Mainz-Kastel, Germany; and Fort
Huachuca, Arizona. This exercise will integrate joint forces, Allies, and partner capabilities to strengthen our ability to defend U.S. homeland and the protect our Allies.

Video by Cpl. Tyler Wilson

B-Roll: Valiant Mark 25 Closing Ceremony

Marine Rotational Force - Southeast Asia

March 26, 2025 | 1:55

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 closing ceremony 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 were 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 Cpl. Tyler Wilson)