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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.
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U.S. Marines from across the III Marine Expeditionary Force trained alongside Japan Self-Defense Force personnel during exercise Resolute Dragon 25.
U.S. Marine Corps Cpl. Tyler Pacheco, a rifleman with 12th Littoral Combat Team, maneuvers through wooded terrain during Resolute Dragon 25.
U.S. Marine Corps Lt. Gen. Roger Turner and Lt. Gen. Seiji Toriumi shake hands to commemorate the opening ceremony of Resolute Dragon 25.
U.S. Marines with Hotel Battery, 31st MEU, ready an M142 HIMARS during a loading exercise at Kadena Air Base, Okinawa, Japan, Aug 27, 2025.
U.S. Marine Corps PFC. Noah Carver with MWSS-174, scans an aircraft for contaminates during exercise Toxic Swell 25.
U.S. Marine Corps F-35B Lightning II aircraft assigned to Marine Fighter Attack Squadron 242, fly over the USS America with 31st MEU.
MARINE CORPS BASE HAWAII, Hawaii – U.S. Marines with 3rd Littoral Combat Team and 3rd Littoral Logistic Battalion, 3rd Marine Littoral Regiment, 3rd Marine Division, performed drills using the U.S. Army’s Maneuver Support Vessel (Light) alongside soldiers assigned to 7th Transportation Brigade (Expeditionary) on Wednesday.
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The rain flies covering over one hundred tents flap in the steamy Okinawa breeze. Dust swirls across
MARINE CORPS BASE CAMP S. D. BUTLER, Okinawa, Japan – III Marine Expeditionary Force (III MEF) successfully concluded Exercise Ulchi Freedom Shield 25 (UFS 25) Aug. 28 with their Republic of Korea (ROK) Marine Corps allies, completing pivotal combined training operations.
The MMOA Roadshow is coming to Okinawa, Sept. 8-9, 2025. There will be four roadshow briefs, a boards and programs brief as well as company and field grade town halls for your specific MOS.