[1] The MEB, commanded by a general officer (usually 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.
MEB command group Regimental Landing Team (RLT) or Regimental Combat Team (RCT) Composite Marine aircraft group Combat logistics regiment (CLR) (w/ 1 to 3 combat logistics Battalions) [notional equipment shown below] The following MEBs were deployed operationally: