Complex sentence: The armed merchant cruiser arrived off Ocean Island on 4 January 1941, and Australian and New Zealand warships maintained a continual presence off the islands during the subsequent months and a naval company and two field guns were deployed to each island.
Split into simpler sentences: The armed merchant cruiser arrived off Ocean Island on 4 January 1941, and Australian and New Zealand warships maintained a continual presence off the islands during the subsequent months. A naval company and two field guns were deployed to each island.