Racism and the French resistance
Last are the serfs they were basically slaves
I think it's the Age of Napoleon...
Answer:
So it's the third one
Explanation:
The war would not be over by Christmas. But D-Day had opened another major front, where the bulk of America's rapidly expanding army could at last be brought to bear. It led to the liberation of France, denying Germany any further exploitation of that country's economic and manpower resources.