 When the barrage ended a few minutes later, several hundred soldiers from the 4th Thu Duc Battalion and the 2nd Battalion, 274th Regiment, emerged from a nearby rubber plantation and assaulted the men from the South Vietnamese 5th Marine Battalion that were guarding the eastern end of the bridge but the assault was repulsed.The VC made a second attempt to cut Saigon off from Biên Hòa at 05