Philippine Joint Exercise Highlights Expansion of Marine Littoral Regiment Capabilities

Exercise Balikatan represented a genuine strategic success, demonstrating the significant progress made by the 3rd Marine Littoral Regiment, its commander noted.

Diana emphasized that further growth and effort remain ahead, but 2024 proved an excellent year to demonstrate a concept that has matured into a tangible capability, earning appreciation from both joint and combined forces, he told Defense One via phone from the Philippines, where he is preparing for Kamandag.

In May during Balikatan, the 3rd MLR fulfilled its intended role as a forward‑deployed, distributed stand‑in force capable of integrating joint and combined combat power within a strategically vital maritime region.

The Hawaii‑based 3rd MLR was activated in 2022 as the inaugural unit of its type. In 2023, the Marine Corps transferred an Okinawa unit to become the 12th Marine Littoral Regiment and, the previous year, canceled plans for another MLR. These units specialize in coastal shallow‑water warfare and are tailored for Indo‑Pacific operations.

During Balikatan, the 3rd MLR acted as mission commander for the joint maritime strike task force, a role that incorporated U.S. Army, Navy, Air Force, and Marine Corps assets alongside Philippine, Japanese, and Canadian personnel.

Diana noted that they successfully synchronized sensors, intelligence, aviation assets, maneuver formations, and long‑range precision fires across the combined joint force. He highlighted that this achievement operationalizes many of the commandant’s concepts of “any sensor, any shooter.”

The regiment also assumed command of maritime key‑terrain security operations in northern Philippines and directed integrated air missile defense during Balikatan.

Diana said that the rapid deployment from Hawaii to the Philippines provided a valuable learning experience.

He explained that despite challenges, the exercise mirrored the fog and friction encountered when closing forces during a crisis, making it an excellent rehearsal for swiftly closing the force, integrating into a broader combined‑joint architecture, and engaging in combat.

While the regiment showed growth, Diana stressed that the exercise was not a one‑off triumph; rather, it served as a capability demonstration — a data point confirming the unit’s ability to perform these tasks, with continued maturation ahead.

He concluded, “This is a journey, not a destination.”

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