Also, the French invasion was the height of his popularity in Germany. It was all downhill after this.

EDIT: My favorite part of WW2 to read about is that last part, "The Downfall." Although to be honest it's scary as hell how he mentally deteriorated while trying to run the war, at the same time he was militarily incompetent, and lashing out at the German people for failing him. He turned against nearly everybody at the very end. And it was a living hell for the people still in the concentration camps.