Re: all it needs now
One of the reasons of the strong feeling of oppression, was the fact that the French took over the coalmines, including the Germans working in them, made them mine the coal, took all of it, and sold it to pay of the war-debt the treaty of Versailles imposed on the losing Germans. This meant that families were freezing to death, while the coal they dug up, was sold for no other reason then to make money for the French. Hindsight has taught us in the EU, that it wasn't such a great idea. since it created an atmosfere wherein the National Socialism of the Nazi's could rapidly prosper.
I won't go sofar as to say part deux of the great European civil war wouldn't have happened, but cutting the Germans some slack, would have gone a long way of keeping the Nazi's the fringe group they were in the beginning.