 The initial phase saw the Australians advance towards the <unk> River . Following the end of the early fighting , the Australian advance towards the main Japanese concentration at <unk> continued as they struck out towards the <unk> and <unk> Rivers . This continued until torrential rain and flooding brought the advance to a halt short of the objective , <unk> away many bridges and roads upon which the Australians relied for supplies . As the Australian advance stalled , the Japanese began harassing the Australian line of communications , and as the rain stopped and the flooding subsided in late @-@ July and into August , the Australians began making preparations to resume the advance towards <unk> again . Ultimately , though , the war came to an end before the final Australian advance began , bringing the campaign to an end . 
