The 15th Marine Expeditionary Unit (15th MEU) is one of seven Marine Expeditionary Units currently in existence in the United States Marine
Corps. The Marine Expeditionary Unit is a Marine Air-Ground Task Force with a strength of about 2,200 personnel. The MEU consists of four major parts: a command element, a ground combat element, an aviation combat element, and a logistics combat element. The 15th MEU is based out of Marine Corps Base Camp Pendleton, California.