sentences:  In early 1972 two Marine brigades of the general reserve were stationed in Quảng Trị Province under the operational control of the recently-formed 3rd Division.The 147th Marine Brigade was headquartered at Mai Loc Camp and the 258th Brigade was at Firebase Nancy.The Marines and 56th Regiment, 3rd Division presented a strong west-facing defense as this was assumed to be the most likely direction of attack.