 On the night of the 6th, the PAVN counterattacked, with a battalion from the 29th Regiment scaling the southwest wall and pushing the 4th Battalion back to Tây Lộc.On the 7th the 3rd Regiment, which had been futilely trying to break into the southeast corner of the Citadel, was moved by Mike boats to Mang Ca to reinforce his units inside the Citadel.The ARVN 2nd Troop, 7th Cavalry, equipped with fifteen M113s arrived at Mang Ca from Quảng Trị to relieve the 3rd Troop.