 Complete the following phrase:  They remained in Darwin for 18 months before being relieved and sent back to Melbourne in April 1943. After taking leave, the 7th Battalion was sent to the Atherton Tablelands in Queensland for a period of intensive pre-deployment training in November. In 1944 the 23rd Brigade had been attached to the II Corps, which was tasked with taking over from the Americans and launching a renewed offensive on 