Towards dawn on 9 February, some elements of the 22nd Brigade had been overrun or surrounded by the invaders and the 2/18th Australian Infantry Battalion, positioned in the centre, had lost more than half of its personnel. The 2/20th Australian Infantry Battalion, holding on to the right flank, was also heavily committed in resisting the Japanese troops. At the same time, the 2/19th Australian Infantry Battalion, to the left side, was being outflanked, and only "B" Company was left to face the initial landings and assaults by the Japanese.