 Complete the following phrase:  In World War II, he had to serve in the army in the Invasion of Poland. He wrote in a letter to his brother stating Es gibt nichts, was einen Krieg rechtfertigt, und es ist jedes Mittel erlaubt, das einen Krieg verhindert, i.e., that nothing justifies war, and all means are permitted to prevent a war. Back at Breslau, he was ready to take the position of Ober-Präsident of Silesia in the in a democratic new beginning after a successful revolution. After the assassination attempt on Hitler 