Marine Expeditionary Force
It is composed of the I Marine Expeditionary Force (I MEF) and the III Marine Expeditionary Force (III MEF). Each MEF comprises a command element (CE), a ground combat element (GCE) (1st and 3rd Marine Divisions), an aviation combat element (ACE) (1st and 3rd Marine Aircraft Wings), and a logistics combat element (LCE) (1st and 3rd Marine Logistics Groups).