Complex sentence: Elements of the 33rd arrived at Morotai, on 18 December 1944 and landings were made on the west coast of the island on 22 December, without opposition and defensive perimeters were established.
Split into simpler sentences: Elements of the 33rd arrived at Morotai, 18 December 1944. Landings were made on the west coast of the island, 22 December, without opposition and defensive perimeters were established.