 The PAVN 4th Army Corps then decided to bolster the strength of the 141st Regiment, with one battalion taken from the 201st Regiment.To deal with the PAVN, Lieutenant General Do Quoc Dong attempted to land the 8/5th Infantry Division in the district of Phước Long using helicopters, but fierce anti-aircraft fire from the PAVN 210th Air-Defence Regiment forced the helicopters to turn around.At the same time, RVNAF transport planes also tried to drop ammunition supplies for ARVN soldiers in the northern areas of Phước Long, but the ammunition load landed in the wrong place and was captured by the PAVN.