Complex sentence: The infantry tried to cut their way through the wire on the Wallemolen spur and small numbers of troops got through both belts but were then stopped by more wire close around the German pillboxes and killed.
Split into simpler sentences: The infantry tried to cut their way through the wire on the Wallemolen spur. Small numbers of troops got through both belts and were then stopped by more wire close around the German pillboxes and killed.