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III MARINE EXPEDITIONARY FORCE

III MEF Logo
FORWARD. FAITHFUL. FOCUSED.
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.

 

 

01

Resolute Dragon| TRUAS Flight

A Tactical Resupply Unmanned Aircraft System takes flight before RD 26 at JGSDF Hijudai Maneuver Area, Oita Prefecture, Japan, June 18, 2026.

02

Short-Bay Live-Fire

U.S. Marine Corps engages targets during a short-bay live-fire range at Camp Hansen, Okinawa, Japan, June 11, 2026.

03

3D MARDIV | Drone Operators

A Marine flys a Neros Archer first-person view drone on Camp Schwab, Okinawa, Japan, May 22, 2026.

04

ARTP | Camp Fuji

Marines pose for a group photo during Artillery Relocation Training Program 26.1 at the Combined Arms Training Center, Camp Fuji, Japan, May 25, 2026.

05

Kaiju Rain 26 | Surveillance

Lance Cpl. Jorryn Tutu, an intelligence surveillance and reconnaissance systems engineer sets a satellite Camp Hansen, Okinawa, Japan, May 20, 2026.

06

Opportunity in the Indo-Pacific

U.S. Marines with III MEF share their perspectives on the professional, personal, and family benefits of serving in the Indo-Pacific.

 

Featured News

My Messy MOS: Motor Transport Mechanic
III Marine Expeditionary Force
Aug. 25, 2017 | 1:38
My Messy MOS: Motor Transport Mechanic
III Marine Expeditionary Force
Aug. 25, 2017 | 1:38
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III Marine Expeditionary Force