 Efforts to repair the defences and assert control in no-man's land began immediately, with an aggressive patrolling program by the Australians leading to numerous clashes with PVA patrols, while they also endured heavy shelling during this time.By day it was hot and humid making conditions in the bunkers uncomfortable, while by night the defenders worked hard digging, wiring and laying minefields.The PVA focused most of their attention on the 7th Marine Regiment, which was occupying positions south-west of 2 RAR after having relieved the Turkish Brigade there, and thereby allowed the Australians some time to prepare.