 Fighting in the northern sector continued during this time also , and although preparations in the south for the final advance towards <unk> continued into August , combat operations on the island ceased as the war came to an end before these were completed . As a result , the final Australian operations on <unk> took place on the <unk> front in the northern sector , where the Australians had been conducting a holding action since the failed landing at <unk> <unk> had forced them to abandon plans for an advance into the <unk> Peninsula . By mid @-@ August , however , following the dropping of two atomic bombs on <unk> and <unk> and Japan 's subsequent unconditional surrender , a cease fire was ordered on the island and although there were minor clashes following this , it spelt an end to major combat operations . 
