III MEF Support Battalion

Who we are

III Marine Expeditionary Force (MEF) Support Battalion provides and coordinates direct combat service support (CSS), security, and administrative services to III Marine Expeditionary Force (MEF), 3d Marine Expeditionary Brigade (MEB), and III MEF Information Group (MIG) Command Elements (CE) in order to enable III MEF to win in competition and conflict.

Featured News

Space Force Supports III MEF with Tactical Space Integration

OKINAWA, Japan- U.S. Space Force Maj. Ben Pearce and Capt. Hannah Garcia-Park, both with Mission Delta-11 (Space Ranges, Aggressors, Tactics and Exercises), conducted tactical level space operations for the first time in history June 9, 2025, at III Marine Expeditionary Force (III MEF), Okinawa, Japan. The Guardians injected critical tactical subject matter expertise directly supporting III MEF's mission, while also delivering realistic and challenging space aggressor training enhancing the lethality and combat power of the entire joint force.

GySgt Schwartz is Awarded the Sergeant Harry D. Myers Award

MARINE CORPS BASE HAWAII, Hawaii – Gunnery Sergeant Ryan M. Schwartz, company gunnery sergeant of Communications company, 3d Marine Littoral Regiment, 3d Marine Division, was awarded the United States Marine Corps Sergeant Harry D. Myers Award for his significant contribution to the combat readiness of 3d MLR.

KAMANDAG 9 | 3d MLR Conducts Simulated Maritime Strikes with NMESIS

BATANES ISLANDS, Philippines – Strategically positioned on an island in the Luzon Strait, U.S. Marines with 3d Littoral Combat Team, 3d Marine Littoral Regiment, 3d Marine Division, established a Fires Expeditionary Advanced Base (EAB) with the Navy-Marine Expeditionary Ship Interdiction System (NMESIS) and conducted simulated maritime interdiction as a part of Exercise KAMANDAG 9, June 1, 2025. The event was tied to a larger Maritime Key Terrain Security Operation (MKTSO), during which U.S. Marines with 3d LCT and Philippine Marines with Marine Battalion Landing Team 10 rehearsed securing and defending key maritime terrain in the advancement of a Free and Open Indo-Pacific.