I'm sorry if I derailed this thread but I don't see how you can really lay the blame on the French politicians, at least completely. The French had the best military in the world at the time: more troops, airplanes and tanks. However, their thinking was outmoded, communications poor, strategy also poor and very slow to respond. Notwithstanding the foregoing, they also should have been able to stop the Germans as the Germans gambled everything and won. It should also be mentioned that more traditional members of the German military were opposed to Guderian's gamble, and it was only Hitler's gambling nature that allowed Guderian's gambit to go through the Ardennes proceed.