Complex sentence: In April 1942, the Australian New Guinea Administrative Unit (ANGAU) administered Papua New Guinea from Port Moresby under Major General Basil Morris commanding 30th Brigade militia troops which had arrived at Port Moresby in January 1942.
Split into simpler sentences: In April 1942, the Australian New Guinea Administrative Unit (ANGAU) administered Papua New Guinea from Port Moresby under Major General Basil Morris. The main force of troops in New Guinea at this time, was the 30th Brigade, consisting of militia troops who had arrived at Port Moresby in January 1942.