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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

3D MARDIV | Drone Operators

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

02

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.

03

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.

04

CATC Fuji | HIMARS

Marines load a rocket pod onto a HIMARS to conduct live fire missions during a live fire training event. Camp Fuji, Japan, May 20, 2026.

05

Marines maintain CH-53E

A U.S. Marine inspects a CH-53E Super Stallion helicopter during routine maintenance at Marine Corps Air Station Futenma, Okinawa, Japan

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

Light Footprint Logistics | U.S. Marines with CLR-37 test logistics capabilities
3rd Marine Logistics Group
Oct. 30, 2020 | 4:17
Light Footprint Logistics | U.S. Marines with CLR-37 test logistics capabilities
3rd Marine Logistics Group
Oct. 30, 2020 | 4:17
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Light Footprint Logistics | U.S. Marines with CLR-37 test logistics capabilities
Motor T Rodeo | 3rd Marine Logistics Group participate in back in the saddle training
Motor T Rodeo | 3rd Marine Logistics Group participate in back in the saddle training
Cybershot | TRT Marines Teach M4 ISMT course
Cybershot | TRT Marines Teach M240B ISMT course
Cybershot | TRT Marines teach M9 ISMT course
Operator in Oki | Marine walks through the duties of a Motor T Operator
Evaluating Readiness | U.S. Marines with 3rd MLG conduct MCCRE and WPT Hill competition.
Blinded by the Light | CLB-31 Marines participate in TCCC
Col. Scott R. Johnson | CLR-37’s previous commander's remarks
CLR-37 Marines Train at JWTC
 
III Marine Expeditionary Force