According to General Siegfried Westphal, a German staff officer on the Western Front, if France had attacked in September 1939 German forces could not have held out for more than one or two weeks.
Ifølge general Siegfried Westphal, en tysk stabsofficer på Vestfronten kunne det tyske forsvar ikke havde holdt ud i mere end to uger, hvis Frankrig havde angrebet i september 1939.