A Marine Expeditionary Brigade (MEB) is a formation of the United States Marine Corps, a Marine Air-Ground Task Force of approximately 14,500 Marines and Sailors constructed around a reinforced infantry regiment, a composite Marine aircraft group, a logistics group and a command element. The MEB, commanded by a general officer (usually a Major General or sometimes a Brigadier General), is task-organized to meet the requirements of a specific situation. It can function as part of a joint task force, as the lead echelon of the Marine Expeditionary Force (MEF), or alone. It varies in size and composition, and is larger than a Marine Expeditionary Unit (MEU) but smaller than a MEF. The MEB is capable of conducting missions across the full range of military operations.
Notional Marine Expeditionary Brigade 
Command Element (CE) 
Ground Combat Element (GCE) 
Aviation Combat Element (ACE) 
Logistics Combat Element (LCE) 
List of MEBs 
Historical MEBs 
The following MEBs were deployed operationally:
- ^ Trickey, Wendy R., Robert C. Benbow and David G. Taylor. MEB Capabilities Study (Final Report), (Alexandria, Virginia: Center for Naval Analyses, February 2010), 7.
- ^ MEB troops to get prestigious valor award, Marine Corps Times, Dan Lamothe, Jun 21, 2012