By April the Germans were increasingly irritated by what they saw as the incompetent conduct of the trial. Hitler declared on 15 March 1942: ""A trial is taking place these days in France, whose main characteristic is that not a word is spoken about the guilt of those responsible for this war. Only a lack of preparation for war is being discussed. We are here looking at a mentality which is incomprehensible to us but which is perhaps better suited than any other to reveal the causes of this new war"".