An official website of the United States government
Here's how you know
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

Marines


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

III MEF | Humanitarian Relief

A U.S. Marine and a Philippine Air Force service member stage equipment in preparation to transport USAID family food packs at Villamor Air Base.

02

CLB-12 | Redesignation

The ceremony marks the redesignation of CLB-12 to 12th Littoral Logistics Battalion on Oct. 3, 2024, Camp Hansen, Okinawa Japan.

03

3d MLR | Air Insert

U.S. Marines with 3d Marine Littoral Regiment, conduct an air insert onto Marine Corps Training Area Bellows, Hawaii, Sept. 24, 2024.

04

III MEF | Enforcing Measures

Courtesy Patrols and vehicle checkpoints underscore the Marine Corps’ dedication to upholding the highest standards of conduct during liberty.

05

31st MEU | Aerial Live-Fire

U.S. Marine Corps Cpl. Scott Detar shoots a GAU-17 mini gun during an amphibious task force live-fire exercise in the Philippine Sea.

06

Fuji Viper | Aerial Escort

U.S. Marine Corps CH-53E Super Stallion helicopters fly in formation prior to Fuji Viper off the coast of Okinawa, Japan, Sept. 12, 2024.

07

31st MEU | Pass & Review

U.S. Marines and Sailors stand at attention during a pass and review ceremony, part of Super Garuda Shield 2024, in the Java Sea, Sept. 5, 2024

08

SY 24 | Amphibious Assault

U.S. Marines egress an Amphibious Combat Vehicle to secure the beach at Hwajin-ri, South Korea, during a simulated raid on Sept. 2, 2024.

09

SY 24 | Ship to Shore Exercise

Battalion Landing Team 1/5, enter the water during a shore to ship movement during exercise Ssang Yong 24.

 

Featured News

3rd LCT conducts live-fire mortar training
3d Marine Division
Oct. 9, 2024 | 0:25
3rd LCT conducts live-fire mortar training
3d Marine Division
Oct. 9, 2024 | 0:25
Player Embed Code:
Tags
More
3rd LCT conducts live-fire mortar training
CBRN Marines rehearse aircraft decontamination procedures during Kaioke Response
20 for the Corps: 5th ANGLICO Rededication Ceremony
MWSS-171 engineers fire machine guns during Outlaw Wrath 24
20 for the Corps: 5th ANGLICO Rededication Ceremony
Outlaw Wrath 24
5th ANGLICO | 20th Anniversary of 5th ANGLICO
U.S. Marines load up for training exercise
31st MEU | Ready, Partnered, Lethal
3D MARDIV Squad Competition
MACG-18 conducts MISTEX
Humanitarian Aid and Disaster Relief Osprey Showcase
Capt. Patrick Robichaux Interview
12th MLR Shooting Competition Reel
A New Battlefield: III Marine Expeditionary Force Information Group
 
III Marine Expeditionary Force