 Complete the following phrase:  After this, the battalion, having suffered heavily from disease, was briefly withdrawn back to Port Moresby for rest at the end of the month. In October, the 227th provided one company to the ad hoc Chaforce, providing work parties to bring up supplies and evacuate the wounded as the Australians advanced towards the Kumusi River, after the Japanese were pushed back from Kokoda. Also in October, the battalion provided a company to Jawforce, carrying out patrols between Jawarere and Nigabaifa, while a platoon was dispatched to Eilogo to form Eilogo Force. Both of these elements returned to the main body of the 227th in mid-November, although Chaforce remained detached at that time. In late November, the 227th was recommitted to the fighting as the Japanese withdrew towards their beachheads in the north. Even though it remained at only half strength, the battalion was moved by air from Port Moresby to Popondetta, and from there they joined the fighting around 