Complex sentence: Experienced in the confusion that had been common place in the night actions of the Naval Battle of Guadalcanal, Lee was not enthusiastic about a night engagement with Japanese surface forces, believing that his crews were not adequately trained for such an action.
Split into simpler sentences: Experienced in the confusion that was common place in the night actions off Guadalcanal, he was not enthusiastic about a night engagement with Japanese surface forces. He felt his crews were not adequately trained for such an action.