Complex sentence: On Jan.21,1945 she steamed into the Ulithi atoll, a meeting spot for US Pacific warships; she was delivering supplies for the 6th Special Naval Construction Battalion also called Seabees.
Split into simpler sentences: On Jan.21,1945 she steamed in to the Ulithi atoll, a meeting spot for US Pacific war ships. She was delivering supplies for the 6th Special Naval Construction Battalion also called Seabees.