Complex sentence: As the ship goes down the captain on K.G.V bows his head as the "Bismarck" sinks beneath the waves he then ordered Dorsetshire to pick up the remaining survivors.
Split into simpler sentences: As the ship goes down the captain on K.G.V bows his head as the "Bismarck" sinks beneath the waves. He then orders Dorsetshire to pick up the remaining survivors.