In his excellent book “The Rise and Fall of the Third Reich ch, Shirer also made the point that when Germany sent armies into Czechoslovakia after the Munich conference, Germany had five divisions on its border with France. France had 150 divisions. He observed that if the French armies had moved quickly and invaded Germany for treaty violations it would have ended Germany’s invasion of Czechoslovakia and ended Hitler.
France had 150 divisions on the border? Where the heck did you get that from? On September 1, 1939 France had a dozen divisions in the vicinity of their border from the North Sea to Switzerland.
They actually attacked Germany first and seized some territory in the Saar region.
By the time of the German assault in May, 1940 the French Army had around 90 divisions activated but how well trained and equipted they were is a good question.
Too bad that Maginot died in the thirties. France might have been better prepared for war and his defensive line maybe would not have stayed half finished.