Complex sentence: The defenders on the ramparts ran short of ammunition and the 229th Battery was reduced to two operational anti-tank guns but the German had great difficulty in identifying British defensive positions and by had managed only a short advance.
Split into simpler sentences: The defenders on the ramparts ran short of ammunition and the 229th Battery was reduced to two operational anti-tank guns. The Germans had great difficulty in identifying British defensive positions and by had managed only a short advance.