Comment by svara

Cynicism may sometimes seem smart, in this case it leads you to stupid conclusions.

While another war between France and Germany would have been unlikely for the reasons you state, it absolutely wasn't a given that the countries would develop cordial relations given their shared history. I call that a miracle. It's something we owe to de Gaulle, Giscard d'Estaing, Helmut Schmidt, François Mitterrand, Helmut Kohl and others -- others in their place may very well have chosen a different path.

History is full of examples of countries being hostile to each other even though cooperation might be beneficial in the long run. In fact, it's probably true for the Israel/Palestine war as well.