Complex sentence: In July 1943, the battalion moved to Cairns where they undertook amphibious training with the American 532nd Engineer Boat and Shore Regiment around Trinity Beach as part of their final preparations before being committed to the fighting in New Guinea.
Split into simpler sentences: In July 1943, the battalion moved to Cairns where they undertook amphibious training with the American 532nd Engineer Boat and Shore Regiment around Trinity Beach. This was the final part of their training before being committed to the fighting in New Guinea.