Complex sentence: It participated in the battle of the Falaise pocket, the advance from Normandy, spent almost two months engaged at the Breskens pocket, wintered in the Netherlands, and took part in the final advance across northern Germany.
Split into simpler sentences: It participated in the battle of the Falaise pocket, the advance from Normandy and spent almost two months engaged at the Breskens pocket. It wintered in the Netherlands and took part in the final advance across northern Germany.