ポートモレスビー作戦
On 9 September 1942, Allen's command responsibilities were narrowed to the direct prosecution of the Kokoda Track campaign and flank protection. Important to subsequent events, NGF retained control of aerial resupply. The Australian advance commenced with the attack of 28 September against the (abandoned) Japanese positions on Ioribaiwa Ridge. The 16th Brigade commenced to advance forward on 3 October.