sentences:  A German staff officer at that time, General Siegfried Westphal, admitted that the French could have succeeded if they had invaded Western Germany during the German invasion of Poland since they have less armored forces in the Western Front at that time.It details in particular the deterioration of French soldier morale, the ineffective style, paralysis, and positionment of the French high command, as well as their tendency to ignore information which did not fit into their battle plans.Also, they ignored warnings that the invasion will proceed through the Ardennes since they considered it as "impenetrable."