Dutch historian explains: Why was there no euphoria when WWII started? What was the German perspective on the outbreak of the Second World War that started with the German invasion of Poland. The Polish Campaign (1939) resulted in a declaration of war from the British and the French to the Germans. How did the ordinary German react to this? Why was there no enthusiasm when WW2 started? Learn more about the German perspective of World War II. History Hustle presents: How Did Germans React to the Outbreak of World War II? (1939).