Hitler had to cope with the British Expeditionary Force who were fighting him from the first German foot stepping into France, otherwise the german army would have been on the channel coast in hours mate.
Britain sacrificed the best part of our tiny standing army to fight along side France and to my knowledge, they suddenly found themselves fighting alone with French politicians talking to hitler about an alternative friendly government...and all they had to do was roll over and play dead....don't get me started.
That said, there can be no braver people than those men and women of the Maquis who never gave up no matter the cost.
rant over