 Complete the following phrase:  On 12 June, the combined task force returned to Seeadler Harbour, and Crutchley left Australia, having completed his two-year assignment as Rear Admiral Commanding Australian Squadron. A day later, Commodore John Augustine Collins raised his flag on Australia as commander of both the Australian Squadron and Task Force 74; the first graduate of the Royal Australian Naval College placed in overall command of the RANs ships. Australia spent most of June in harbour, and sailed on 24 June with Task Forces 74 and 75 to perform a pre-landing shore bombardment for the 