In this interlude, Eather patrolled toward Ioribaiwa, both to harass the Japanese and to gather intelligence on their disposition. By 27 September, he issued orders to his battalion commanders for an "all-out" assault the following day. The attack found that Ioribaiwa had been abandoned and the artillery fired by the Australians had been without effect. Patrols followed up immediately, with one of the 2/25th Battalion finding that by 30 September, Nauro was unoccupied. Ordered to withdraw, the position at Ioribaiwa had been abandoned by the last Japanese troops during the night of 26 September.