Besides trying to influence opinion abroad, Goerdeler urged the German military to overthrow Hitler and frequently found himself frustrated by the unwillingness of the generals to consider a "putsch". In a memo written at the end of July 1939 during a visit to Turkey, Goerdeler took the view that Hitler was bluffing in his demands against Poland, and if he could be forced to stand down by a firm Anglo-French stand, that would be such a blow as to topple the Nazi regime. Later, as the summer of 1939 went on, Goerdeler changed his views about Hitler's intentions towards Poland. In August 1939, Goerdeler contacted General Walter von Brauchitsch and advised him if Germany attacked Poland, the result would not be the limited war that Hitler expected but a world war pitting Germany against Britain and France. Goerdeler advised Brauchitsch that the only way to save Germany from such a war would be a "putsch" to depose Hitler. Brauchitsch was not interested in Goerdeler's opinions, and told him that he shared Hitler's belief that Germany could destroy Poland without causing a world war in 1939. On August 25, 1939, discovering that the German-Soviet Non-Aggression Pact had not led as intended to the Anglo-French abandonment of Poland, Hitler ordered the temporary postponement of "Fall Weiss", which had been due to begin the next day. Goerdeler was convinced that the postponement was a fatal blow to Hitler's prestige.