Complex sentence: By 08.00 most of the fighting around the beach was over, and 13.00, commandos had linked up with paratroopers by the Orne waterways, inland from Ouistreham.
Split into simpler sentences: By 08.00 most of the fighting around the beach was over. By 13.00, commandos had linked up with paratroopers by the Orne waterways, inland from Ouistreham.