Complex sentence: Bitter fight developed around the bridge at Limale as Grouchy's troops tried to storm it, again the Prussian held their positions, and covered Blücher's transfer of 72,000 troop to Wellington's aid at Waterloo.
Split into simpler sentences: Bitter fight developed around the bridge at Limale, as Grouchy's troops tried to storm it. The Prussian held their positions and covered Blücher's transfer of 72,000 troop to Wellington's aid at Waterloo.