Before resorting to open aggressive warfare, the Nazis undertook some rather cautious experiments to test the spirit of resistance of those who lay across their path. They advanced, but only as others yielded, and kept in a position to draw back if they found a temperament that made persistence dangerous.
On 7 March 1936 the Nazis reoccupied the Rhineland and then proceeded to fortify it in violation of the Treaty of Versailles and the Pact of Locarno. They encountered no substantial resistance and were emboldened to take the next step, which was the acquisition of Austria. Despite repeated assurances that Germany had no designs on Austria, invasion was perfected. Threat of attack forced Schuschnigg to resign as Chancellor of Austria and put the Nazi Defendant Seyss-Inquart in his place. The latter immediately opened the frontier and invited Hitler to invade Austria “to preserve order”. On March 12th invasion began. The next day, Hitler proclaimed himself Chief of the Austrian State, took command of its armed forces, and a law was enacted annexing Austria to Germany.
Threats of aggression had succeeded without arousing resistance. Fears nevertheless had been stirred. They were lulled by an assurance to the Czechoslovak Government that there would be no attack on that country. We will show that the Nazi Government already had detailed plans for the attack. We will lay before you the documents in which these conspirators planned to create an incident to justify their attack. They even gave consideration to assassinating their own Ambassador at Prague in order to create a sufficiently dramatic incident. They did precipitate a diplomatic crisis which endured throughout the summer. Hitler set September 30th as the day when troops should be ready for action. Under the threat of immediate war, the United Kingdom and France concluded a pact with Germany and Italy at Munich on September 29, 1938, which required Czechoslovakia to acquiesce in the cession of the Sudetenland to Germany. It was consummated by German occupation on October 1, 1938.
The Munich Pact pledged no further aggression against Czechoslovakia, but the Nazi pledge was lightly given and quickly broken. On the 15th of March 1939, in defiance of the treaty of Munich itself, the Nazis seized and occupied Bohemia and Moravia, which constituted the major part of Czechoslovakia not already ceded to Germany. Once again the West stood aghast, but it dreaded war, it saw no remedy except war, and it hoped against hope that the Nazi fever for expansion had run its course. But the Nazi world was intoxicated by these unresisted successes in open alliance with Mussolini and in covert alliance with Franco. Then, having made a deceitful, delaying peace with Russia, the conspirators entered upon the final phase of the plan to renew war.
War of Aggression:
I will not prolong this address by detailing the steps leading to the war of aggression which began with the invasion of Poland on September 1, 1939. The further story will be unfolded to you from documents including those of the German High Command itself. The plans had been laid long in advance. As early as 1935 Hitler appointed the Defendant Schacht to the position of General Deputy for the War Economy (2261-PS). We have the diary of General Jodl (1780-PS); the “Plan Otto,” Hitler’s own order for attack on Austria in case trickery failed (C-102); the “Plan Green” which was the blueprint for attack on Czechoslovakia (388-PS); plans for the war in the West (375-PS, 376-PS); Funk’s letter to Hitler dated August 25, 1939 detailing the long course of economic preparation (699-PS); Keitel’s top-secret mobilization order for 1939-40 prescribing secret steps to be taken during a “period of tension” during which no “ ‘state of war’ will be publicly declared even if open war measures against the foreign enemy will be taken.” This letter order (1639A-PS) is in our possession despite a secret order issued on March 16, 1945, when Allied troops were advancing into the heart of Germany, to burn these plans. We have also Hitler’s directive, dated December 18, 1940, for the “Barbarossa Contingency” outlining the strategy of the attack upon Russia (446-PS). That plan in the original bears the initials of the Defendants Keitel and Jodl. They were planning the attack and planning it long in advance of the declaration of war. We have detailed information concerning “Case White,” the plan for attack on Poland (C-120). That attack began the war. The plan was issued by Keitel on April 3rd, 1939. The attack did not come until September. Steps in preparation for the attack were taken by subordinate commanders, one of whom issued an order on June 14, providing that:
“The Commander-in-Chief of the Army has ordered the working out of a plan of deployment against Poland which takes in account the demands of the political leadership for the opening of war by surprise and for quick success. . . .
“I declare it the duty of the commanding generals, the divisional commanders, and the commandants to limit as much as possible the number of persons who will be informed, and to limit the extent of the information, and ask that all suitable measures be taken to prevent persons not concerned from getting information. . . .
“The operation, in order to forestall an orderly Polish mobilization and concentration, is to be opened by surprise with forces which are for the most part armored and motorized, placed on alert in the neighborhood of the border. The initial superiority over the Polish frontier guards and surprise that can be expected with certainty are to be maintained by quickly bringing up other parts of the Army as well to counteract the marching up of the Polish Army. . . .
“If the development of the political situation should show that a surprise at the beginning of the war is out of question, because of well-advanced defense preparations on the part of the Polish Army, the Commander-in-Chief of the Army will order the opening of the hostilities only after the assembling of sufficient additional forces. The basis of all preparations will be to surprise the enemy. . . .” (2327-PS)