The United States Marine Corps (USMC) has a long history of seizing anddefending advance bases;. Prior to World War I, base defense was the Marine Corps'main mission. l During World War I, the Advance Base Force was created to seize anddefend enemy territory, primarily bases. In 1933, the Advance Base Force transformedinto the Fleet Marine Force (FMF) under Commandant Major General Ben Fuller.2 By1939, the looming threat of Japanese aggression in...