Complex sentence: Now that the Allies were on mainland Europe, thought was turning to the issue of dealing with the expected influx of newly released New Zealanders from prisoner of war camps and the New Zealand Reception Group was set up to help repatriate these men.
Split into simpler sentences: Now that the Allies were on mainland Europe, thought was turning to the issue of dealing with the expected influx of newly released New Zealanders from prisoner of war camps. The New Zealand Reception Group was set up to help repatriate these men.