Soon after the airmobile operation commenced with the first American units being inserted by helicopter to the north, west and south. The US 3rd Infantry Brigade—under the command of Colonel William Brodbeck—was subsequently inserted by helicopter and by road. The brigade headquarters and command element departed Di An in convoy and reached Trung Lap on the western boundary of the brigade's area of operations by midday.
Following the commencement of the airmobile operation, American units were transported to strategic locations via helicopter.  The US 3rd Infantry Brigade, under Colonel William Brodbeck's command, was subsequently deployed by both helicopter and road. The brigade headquarters and command element departed Di An in a convoy and reached Trung Lap on the western edge of their operational area by midday.