U.S. Marine Corps Forces Pacific is the largest operational command in the Marine Corps. It comprises two-thirds of the Marine Corps’ active-duty combat forces, I Marine Expeditionary Force and III Marine Expeditionary Force, collectively known as the “Pacific Marines.”
Pacific Marines serve as an expeditionary force-in-readiness. They operate as air-ground-logistics teams and are forward positioned and actively employed throughout the Indo-Pacific every day.
Pacific Marines live and work alongside the joint force and like-minded Allies and partners to prevent conflict, respond to crisis, and if the Nation calls, to fight and win.
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31st MEU | U.S. Marines, Sailors Honor Legacy of Operation Swift During Battlefield Visit in Vietnam
From the littorals of the Indo-Pacific to the familiar training grounds of Southern California, 2025 was a year defined by action for I Marine...
U.S. Marines with 1st Air Naval Gunfire Liaison Company, I Marine Expeditionary Force Information Group, conduct close air support training during...
Throughout 2025, I Marine Expeditionary Force Information Group provided the critical information advantage that enabled I MEF to innovate,...
U.S. Marine Corps Forces, Pacific has played a vital role in major conflicts throughout the Pacific theater and remains the Corps’ largest...
A "Stand-in Force" is a forward deployed, agile and lethal force designed to counter potential threats and deter aggression. U.S. Marine Corps Chief...
Pacific Marines are a ready, forward-deployed force, working with allies and partners to ensure a free and open Indo-Pacific.
The Boxer Amphibious Ready Group - 11th Marine Expeditionary Unit completed a routine integrated training exercise off the coast of Southern California, Jan. 21 – Feb. 6, 2026. Conducted underway in the U.S. 3rd Fleet area of operations, the amphibious training enhanced warfighting readiness and strengthened the partnership of the amphibious force in preparation for future expeditionary operations. During this at-sea period, the BOXARG-11th MEU team improved their efficiency in a wide range of missions such as visit, board, search and seizure operations, defense of the amphibious task force drills, aviation strike packages and various ship-to-shore movements. Additionally, the amphibious force successfully conducted two company-sized helicopter raids in Barstow, California and Yuma, Arizona, and one company-sized amphibious combat vehicle raid on Marine Corps Base Camp Pendleton, demonstrating lethality and warfighting prowess during joint littoral operations.
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U.S. Marines with 9th Engineer Support Battalion, 3rd Marine Logistics Group, acted quickly to assist a civilian experiencing a medical emergency at a local restaurant on Jan. 21, 2026. U.S. Marine Corps Cpl. Gabriel Castleman and Sgt. Logan Gilbert, both combat engineers with 9th ESB, were dining at a ramen restaurant when they noticed an elderly man losing consciousness.
U.S. Marines with Headquarters and Service Battalion, Marine Corps Forces, Pacific participated in non-lethal weapons training led by Headquarters Battalion, Provost Marshal’s Office, Marine Corps Base Hawaii, instructors to strengthen civil disturbance response capabilities and installation security. The training enhanced Marines’ readiness to assist law enforcement during complex security scenarios that may arise, which test installation defense, command and control, and interagency coordination.