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| II MEF (Marine Expeditionary Force) | |
|---|---|
| Unit name | II Marine Expeditionary Force |
| Dates | 1962–present |
| Country | United States |
| Branch | United States Marine Corps |
| Type | Marine Air-Ground Task Force |
| Role | Expeditionary response and crisis response |
| Size | ~50,000 |
| Command structure | United States Marine Corps Forces Command |
| Garrison | Marine Corps Base Camp Lejeune |
| Nickname | II MEF |
| Motto | "Ready, Rugged, Relentless" |
| Notable commanders | Lieutenant General Lewis A. "Chesty" Puller |
II MEF (Marine Expeditionary Force) is a principal warfighting organization of the United States Marine Corps headquartered at Marine Corps Base Camp Lejeune in North Carolina. It serves as a large, scalable Marine Air-Ground Task Force capable of integrating forces from the II Marine Expeditionary Force (Forward), 2nd Marine Division, 2nd Marine Aircraft Wing, and 2nd Marine Logistics Group for expeditionary operations. II MEF has participated in major operations tied to the U.S. Atlantic Command, United States Joint Forces Command, NATO exercises, and contingency responses involving the U.S. Department of Defense and interagency partners.
II MEF traces its lineage to formations activated during the Cold War in response to crises involving the Berlin Crisis of 1961, the Cuban Missile Crisis, and later contingencies such as Operation Desert Shield and Operation Desert Storm. Elements of II MEF deployed to support operations in Operation Iraqi Freedom and Operation Enduring Freedom alongside units from the I Marine Expeditionary Force and III Marine Expeditionary Force. II MEF has been engaged in multinational training with United Kingdom Armed Forces, Canada, France, Germany, Poland, Norway, and Spain, reflecting integration with NATO and partnership with the United States Southern Command and United States European Command.
II MEF is organized as a scalable headquarters capable of commanding a division, aircraft wing, and logistics group, incorporating subordinate commands such as the 2nd Marine Division, 2nd Marine Aircraft Wing, and 2nd Marine Logistics Group. The command includes specialized staff sections that coordinate with the U.S. Special Operations Command, U.S. Central Command, U.S. Northern Command, and joint task forces such as Joint Task Force Katrina during domestic disaster response. II MEF’s structure enables integration with naval forces including II Marine Expeditionary Brigade task organizations and carrier strike groups from the United States Navy.
II MEF provides expeditionary combat forces to support United States Atlantic Command and combatant commanders for crisis response, forcible entry, and sustained operations, interoperating with coalition partners such as the United Kingdom, Australia, Japan, and South Korea. Its mission portfolio includes deterrence alongside NATO Article 5 collective defense activities, humanitarian assistance with organizations like the Federal Emergency Management Agency during disasters, and security cooperation aligned with the U.S. National Security Strategy and Quadrennial Defense Review priorities. II MEF supports maritime expeditionary operations with coordination involving the United States Fleet Forces Command and amphibious ships like the Wasp-class amphibious assault ship.
II MEF and its subordinate units have deployed to theaters including Iraq, Afghanistan, Haiti, and the Balkans, participating in campaigns from Operation Iraqi Freedom to Operation Unified Response. II MEF forces have supported stability operations with multinational coalitions under commands such as NATO ISAF and participated in non-combatant evacuation operations similar to those in Lebanon and Liberia. Amphibious task units from II MEF have embarked aboard amphibious assault ships to support Operation Enduring Freedom - Philippines style engagements and bilateral operations with the Royal Marines and Dutch Marine Corps.
II MEF conducts large-scale exercises including annual events like Bold Alligator, Trident Juncture, and Exercise African Lion alongside partners such as the Royal Navy, Spanish Navy, Royal Netherlands Navy, Italian Navy, and Marine Nationale. Training spans combined arms live-fire exercises at ranges like Marine Corps Air Ground Combat Center Twentynine Palms, urban training with the National Training Center (Fort Irwin), and amphibious training with the Expeditionary Warfare Training Group Pacific. II MEF routinely trains for joint integration with the United States Army, United States Air Force, and United States Navy assets including F/A-18 Hornet strike coordination and MV-22 Osprey tiltrotor operations.
II MEF fields combat power drawn from platforms such as the M1 Abrams, M777 howitzer, Light Armored Vehicle, AH-1Z Viper, UH-1Y Venom, and the F-35B Lightning II when integrated with the 2nd Marine Aircraft Wing. Logistics capabilities include tactical transport from CH-53E Super Stallion squadrons, expeditionary engineering units equipped with M984A4 tractor assets, and sustainment provided by the 2nd Marine Logistics Group. II MEF leverages command, control, communications, computers, intelligence, surveillance, and reconnaissance provided by systems compatible with Link 16, GBS and interoperability standards used by NATO allies.
II MEF’s insignia and unit colors reflect heritage tied to Marine Corps History Division records and are displayed at Marine Corps Base Camp Lejeune alongside memorials to engagements such as the Battle of Belleau Wood and campaigns commemorated by the National Museum of the Marine Corps. Traditions within II MEF include observances aligned with Marine Corps Birthday, interoperability rituals with allied units like the Royal Marines Commando, and unit awards conferred under Department of the Navy decoration protocols.