 Commanded by a colonel with a lieutenant colonel as XO, it consists of a battalion landing team (BLT), a reinforced infantry battalion, as its GCE and a Marine Medium Tiltrotor Squadron (VMM), reinforced with detachments of helicopters, tactical fixed wing, and UAV aircraft, as well as aviation ground support, command and control, and air defense detachments, as its ACE.The MEU's LCE consists of a CLB, and its CE is a company-sized version of the MEB's battalion-sized headquarters group.The MEF is the Marine Corps's equivalent tactical command level to an army corps.