Fall Gelb, the German invasion of France, was once again postponed by Hitler. Meanwhile, Pope Pius XII shared the intelligence gathered by Vatican agents that Germany was planning on invading the Low Countries with the Princess of Piedmont Marie Jos_, who was the sister of King Leopold III of Belgium and wife of Italian Crown Prince Umberto. On the same day, a massive German armoured motorised column many miles long was spotted driving west through the Ardennes forest but the Belgian Army did not respond
