It is the Marine Corps’ only permanently forward-deployed Brigade sized Marine Air-Ground Task Force[3] and is a resilient, ready and relevant force able to rapidly deploy and conduct operations across the spectrum from humanitarian assistance and disaster relief to amphibious assault and high intensity combat.

3d MEB also conducts combined operations and training throughout the region in support of United States national security strategy.

In early 1918 rebel activity had subsided and the Brigade was relocated in August 1918 to Galveston, Texas to serve as a ready force should a contingency arise in the Caribbean.

[5] In March 1927, the 3rd Marine Brigade was again activated at MCB Quantico under the command of Brigadier General Smedley Butler.

[5] In March 1942, the Brigade was reactivated at Marine Corps Air Station New River, North Carolina and deployed to Western Samoa, to garrison and defend the island.

[5] In January 2000 III MEF Forward, in the midst of supporting International Force for East Timor during Operation Stabilize, stood down and the 3d Marine Expeditionary Brigade was reactivated.

In November 2007 Cyclone Sidr struck Dhaka, Bangladesh killing close to 3,000 people and displacing nearly one million from their homes.

3D MEB deployed to provide humanitarian assistance and disaster relief in support of Operation Sea Angel II where they delivered over 25,000 gallons of water the first day and over 352,000 lbs.

More than 14 million people were affected by the super typhoon and 3D MEB was able to respond to the request of the Government of the Philippines within hours under the direction of USAID and the Office of Foreign Disaster Assistance.

More than 2,000 tons of relief supplies were delivered using the Marine Corps’ MV-22 Osprey aircraft, and more than 20,000 victims were evacuated from affected areas around Tacloban.

[5][17] Most recently in April and May 2015, 3D MEB deployed to Nepal for Operation Sahayogi Haat to aid victims of the magnitude 8.1 earthquake, which killed 9,000 people, injured 22,000, toppled buildings throughout the capital Kathmandu, and created numerous landslides and avalanches.

The MEB deployed C-130s, MV-22 Ospreys and UH-1Y Venoms to deliver 115 tons of relief supplies and evacuate 75 people from isolated areas.

In the event of a contingency, 3D MEB will mitigate foreign or domestic crises, protect U.S. citizens and territories, or counter threats to U.S. national interests as needed.