 Unhindered by the restrictions on ammunition usage which had applied to the Marines during this period, the supporting fires of the British-Commonwealth 25-pounder field guns proved of considerable assistance.A liaison officer from 16 RNZA was sent subsequently over to the Marine artillery regiment during the night to establish communication.More than 13,000 rounds were fired by the British and New Zealand gunners that night, with the close defensive fire having a devastating effect on the assaulting PVA infantry.