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Marines disembark from CH-53 Sea Stallion helicopter during air-ground task force training operation in desert terrain.
Marines disembark from CH-53 Sea Stallion helicopter during air-ground task force training operation in desert terrain.

Marine Air-Ground Task Force

One Force. Infinitely Capable.

The Marine Air-Ground Task Force (MAGTF) is the Corps’ principal warfighting organization—combining all functions of Marines, equipment, and combat capabilities under one command. This structure enables Marines to respond rapidly and fight decisively across the globe.

Every MAGTF is built around four key elements that work together to execute effective and efficient operations:

  • Ground Combat Element (GCE) – The Marines on the ground: infantry forces supported by armored vehicles, precision fire weapons, reconnaissance, artillery, and engineers.
  • Aviation Combat Element (ACE) – The pilots and aircraft, including jets, helicopters, tiltrotor craft, and UAVs, supported by the crews that keep them flying.
  • Logistics Combat Element (LCE) – The lifeline of the MAGTF: vehicles, utilities, power, water, transportation, medical, and food services ... and the Marines who make it all function in any environment.
  • Command Element (CE) – The headquarters that oversees operations, directing communications, intelligence, and leadership to synchronize every moving part.

No matter the mission or environment, the MAGTF ensures Marines are equipped, supported, and unified under one purpose: to win.

Learn About Marine Roles

One of the World's Most Unique Fighting Forces

The unit structure of the MAGTF—combining ground, aviation, and logistics elements under a single command—sets it apart from any other military organization.

This unified design gives a MAGTF formation unmatched speed, flexibility, and lethality, allowing Marines to execute a wide range of missions—offensive, defensive, humanitarian, or crisis response—with extreme precision. MAGTF units are built to be self-sufficient and can be deployed within six hours, ready to operate in any environment without immediate resupply.

MAGTFs also come in different sizes, each tailored to the mission at hand. Whether a small, fast-moving force or a large-scale combat element, each MAGTF is customized with the right Marines, equipment, and capabilities to complete the mission and win the fight.

See MAGTF Weapons
Marines board CH-53 helicopter on amphibious assault ship flight deck during Marine Expeditionary Unit operations at sea.

Marine Expeditionary Unit

The MEU is the smallest, fastest, and most responsive MAGTF

The Marine Expeditionary Unit (MEU) is the most agile, standing Marine Air-Ground Task Force (MAGTF), capable of rapid response within hours of notification. Forward-deployed and ready at a moment’s notice, the MEU is often the first to arrive when crises erupt around the globe. With 2,200 Marines and a flexible force structure, the MEU is built for rapid response and a wide range of missions—from combat to humanitarian aid.

Each MEU is commanded by a Colonel and includes a powerful combination of:

  • A Battalion Landing Team
  • An Aviation Combat Element
  • A Combat Logistics Battalion

All of this fits aboard three Navy amphibious ships, allowing MEUs to operate independently and strike from the sea. Supplied for 15 days of sustained operations, the MEU is a versatile force that embodies the Marine Corps’ expeditionary spirit—ready to respond anywhere, anytime.

Marines board CH-53 helicopter on amphibious assault ship flight deck during Marine Expeditionary Unit operations at sea.
An amphibious combat vehicle disembarks into the water from the well deck of a MEU ship.

Marine Expeditionary Brigade

Bringing increased strength and flexibility to the fight

A Marine Expeditionary Brigade (MEB) is a flexible, mid-sized MAGTF designed for rapid crisis response. When the mission demands more Marines, more firepower, and more capability—the Marine Expeditionary Brigade (MEB) answers the call. Task-organized for specific missions, an MEB brings together 4,000 to 16,000 Marines under a single command to execute mid-sized operations with precision and overwhelming force.

Led by a Brigadier General, an MEB includes:

  • A Regimental-size Ground Combat Element
  • A Composite Marine Aircraft Group
  • A Combat Logistics Regiment

With enhanced aviation assets and robust support capabilities, the MEB is designed to operate independently and effectively in demanding environments. Supplied for 30 days of sustained operations, the MEB stands as a scalable and combat-ready force, capable of dominating a wide range of missions anywhere in the world.

An amphibious combat vehicle disembarks into the water from the well deck of a MEU ship.
Marines communicate via radio as V-22 Osprey aircraft lands during Marine Expeditionary Force training in dusty conditions.

Marine Expeditionary Force

The primary warfighting force for larger operations

A Marine Expeditionary Force (MEF) is the largest Marine Air-Ground Task Force and the Marine Corps' principal combat organization for major operations. When the mission is large-scale and the stakes are high, the MEF leads the way. As the primary warfighting force of the Marine Corps, the MEF is built to conduct sustained combat operations across any terrain—anywhere in the world.

Composed of 46,000 to 90,000 Marines and commanded by a Lieutenant General, each MEF integrates every element of Marine combat power:

  • A full Marine Division
  • A full Marine Aircraft Wing
  • A full Marine Logistics Group

With three active MEFs stationed in California, North Carolina, and Japan, the Marine Corps is positioned to respond globally with speed and force. Each MEF is supplied for 60 days of independent operations, making it a self-sustaining, flexible, and lethal fighting force—ready for major combat operations whenever and wherever they arise.

Marines communicate via radio as V-22 Osprey aircraft lands during Marine Expeditionary Force training in dusty conditions.
Marines in full combat gear climb down from armored vehicle during training exercise under clear blue sky.
Marines in full combat gear climb down from armored vehicle during training exercise under clear blue sky.

Built to Win—Then, Now, and Always

MAGTFs adapt fast, strike hard, and succeed anywhere. Made up of the same determined, unconquerable Marines, MAGTFs remain the key to victory both today and tomorrow.

See the Future of Warfare