Complex sentence: For an hour and thirty-five minutes the Americans resisted, most of the battle involved the "Trumbull" engaging the the "Iris" but towards the end HMS "General Monk" closed and joined in.
Split into simpler sentences: For an hour and thirty-five minutes the Americans resisted. Most of the battle involved the "Trumbull" engaging the "Iris", but towards the end HMS "General Monk" closed and joined in.