Camp Schwab
The battalion moved to MCB Camp Lejeune to join the 2nd Marine Regiment in October 1981; they began participating in the Unit Deployment Program (UDP), returning to Camp Schwab, Okinawa after 18 months at Camp Lejeune. While there they participated in several operations and served as the Primary Air Alert Force for the Marine Corps three consecutive years in a row from 1981 to 1985. During the late 1980s, 2/4 was reassigned to the 8th Marine Regiment to participate in the dedicated Marine Amphibious Unit (MAU), rotation to the Mediterranean.