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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

VMFA 211 | Deploys to Japan

Marine Corps F-35B Lightning II aircraft with Marine Fighter Attack Squadron (VMFA) 211 lands at Marine Corps Air Station Iwakuni, Japan, May 10, 2025

02

31st MEU | TRAP during MEUEX

U.S Marines conduct on and off drills out of a LAV while conducting a TRAP simulation as a part of MEU Exercise at Camp Hansen, Japan, May 3, 2025.

03

31st MEU | Mechanized Raid

A U.S. Marine gives commands to surrendering adversary forces during a simulated force-on-force mechanized raid at Camp Hansen, Okinawa, Japan.

04

31st MEU | Fast Rope

Marines with Maritime Raid Force fast-rope from a CH-53E Super Stallion during alternate insertion and extraction training.

05

MWSS 171 | Small Arms Range

Staff Sgt. Jacob Rizzo, with Marine Wing Support Squadron (MWSS) 171, Marine Aircraft Group 12, 1st Marine Aircraft Wing, fires an M4 carbine.

06

Iwo Jima | 80 Years Later

U.S. Marine Corps private first class and a veteran of the Battle of Iwo Jima, pays respects to fallen comrades at the 80th Reunion of Honor ceremony.

 

Featured News

Introducing 3rd SGX
3rd Marine Logistics Group
May 10, 2022 | 2:22
Introducing 3rd SGX
3rd Marine Logistics Group
May 10, 2022 | 2:22
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Introducing 3rd SGX
3rd Supply Battalion FEX
So Long CLR-35
Coming to a DZ near you | U.S. Marines with CLR-3 conduct a wide variety of airborne operations
Balikatan 2019: Airmen, Marines showcases airpower to local kids social media video
Ammo Tech Marines, EOD Marines work alongside each other in emergency destruct training
Nations bring happiness to Thai school during Cobra Gold 17
31st MEU Marines Help Deliver Much Needed Supplies to Residents of Kyushu Island
Remote Areas of Nepal Need Relief Supplies, JTF 505 Responds
Remote Areas of Nepal Need Relief Supplies, JTF 505 Responds (clean version, no music)
Joint Task Force 505 Using Thailand to Provide Unique Capabilities to Nepal Relief Efforts
U.S. Marines and Nepalese Soldiers Deliver Aid on MV-22 Ospreys (Without Titles)
USNS Sacagawea Blazes Trail for ROK
Supply Guy
 
III Marine Expeditionary Force