On 4 May 1965, upon orders from RLT-6, the 1st Battalion, 8th Marines was transported by helicopters from San Isidro into LZ-4 where it established its Command Post in the Belle Vista Golf House located next to the Embajador Hotel. For the next three days the battalion's and attached units' vehicles moved through the newly opened LOC with all the landing teams equipment and supplies. The battalion was directed to provide security in its area of responsibility around the golf course and to provide one officer and 60 enlisted men for the security of the beach supply area (Red Beach) at Haina.