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Okinawa, Japan

Who we are

III MEF is the nucleus of a joint and coalition Stand-In Force within the First Island Chain. In competition, III MEF assures and expands access for the joint force across the Indo-Pacific. In crisis, it provides in-place response forces to secure allies and partners while deterring adversary aggression. In conflict, III MEF fights from advanced naval bases as part of a naval expeditionary force and enables Joint Force objectives in the Indo-Pacific.



JIIM Batanes TTX

U.S. and Philippine government officials convene for the Joint, Interagency, Intergovernmental, Multinational Energy Resilience and Readiness...


Seaside Signals and Communication| 3rd Radio Battalion

U.S. Marine Corps Lance Cpl. Austin Jinapuck, a defensive cyberspace warfare operator with 3rd Radio Battalion, III Marine Expeditionary Force...


III MEF Marines participate in Basic Jungle Skills Course

A U.S. Marine with III Marine Expeditionary Force navigates across a rope bridge during a Basic Jungle Skills Course at the Jungle Warfare Training...


5th ANGLICO | Warrior Shield 24

U.S. Marines with 5th Air Naval Gunfire Liaison, III Marine Expeditionary Force Information Group, and Republic of Korea Marines conduct a Tactical...


HMA Thailand 24 | A Woman’s Fight Against Landmines

U.S. Marines and Sailors with 3rd Marine Logistics Group and Royal Thai Armed Forces instructors with Thailand Mine Action Center (TMAC) teach an...


Warrior Shield | U.S., ROK Marines conduct Combined Live-Fire

U.S. Marine Corps Cpl. Johnathan Saechao, a low altitude air defense gunner, with 3rd Low Altitude Air Defense Battalion, 3rd Marine Air Wing, and a...


Warrior Shield 24 | 3rd MLG Live-Fire Range

U.S. Marine Corp Lance Cpl. Cian Doyle, a combat engineer with 9th Engineer Support Battalion, 3rd Marine Logistics Group, engages targets during a...


Humanitarian Aid

III MEF Marines provide assistance in the Philippines.


Stand-in Force Exercise 24

U.S. Marine Corps Cpl. Alexander Crider signals to his squad during Stand-in Force Exercise 24 at Combined Arms Training Center Camp Fuji, Japan,...


HMLA-169 | SPIE Rigging, Fast Rope, and Rappel Training

U.S. Marines with III Marine Expeditionary Force rappel from a UH-1Y Venom assigned to Marine Light Attack Helicopter Squadron 169 during special...


VMU-3 Milestone Video

The U.S. Marine Corps MQ-9A MUX/MALE is unveiled during a ceremony for Marine Unmanned Aerial Vehicle Squadron (VMU) 3, Marine Aircraft Group 24, 1st...


3d LCT conducts Multi-Purpose Anti-Armor Anti-Personnel Weapons Systems Range

U.S. Marines with 3d Littoral Combat Team, 3d Marine Littoral Regiment, 3d Marine Division, conduct a Multi-Purpose Anti-Armor Anti-Personnel Weapons...


Featured News


5th ANGLICO | Warrior Shield 24
III MEF Information Group
March 21, 2024 | 1:04
5th ANGLICO | Warrior Shield 24
III MEF Information Group
March 21, 2024 | 1:04
Player Embed Code:
5th ANGLICO | Warrior Shield 24
Balikatan 24: 3rd MLR and Philippine Marines Participate in MKTSO
VMGR-152 Marines train in Guam
KFT 24
4th Marine Regiment 110th anniversary | Mosquito Bowl
JIIM Batanes TTX
Corvus Dawn 24
JGSDF and III MEF | Combat Medic Course
Warrior Skills Competition
What is 3d LCT?
4th Marine Regiment 110th Anniversary
3d Recon Live Fire Range
MASS-2 executes combat readiness exercise
ARTP 23.4
Jungle Leaders Course 24
III Marine Expeditionary Force