That was the position at the end of the third week in August 1939. On 22 August the Russian-German Non-aggression Pact was signed in Moscow. The orders to invade Poland were given immediately after the signing of that treaty, and the H-hour was actually to be in the early morning of 25 of August.
(5) Pleas for peace. On the same date, 22 August, news reached England that the German-Russian agreement was being signed. The significance of that pact from a military point of view as to Germany was obvious, and the British government immediately made their position clear in one last hope, that the German government might possibly think better. The Prime Minister wrote to Hitler as follows:
“Your Excellency.
“Your Excellency will have already heard of certain measures taken by His Majesty’s Government, and announced in the press and on the wireless this evening.
“These steps have, in the opinion of His Majesty’s Government, been rendered necessary by the military movements which have been reported from Germany, and by the fact that apparently the announcement of a German-Soviet Agreement is taken in some quarters in Berlin to indicate that intervention by Great Britain on behalf of Poland is no longer a contingency that need be reckoned with. No greater mistake could be made. Whatever may prove to be the nature of the German-Soviet Agreement, it can not alter Great Britain’s obligation to Poland, which His Majesty’s Government have stated in public repeatedly and plainly, and which they are determined to fulfill.
“It has been alleged that, if His Majesty’s Government had made their position clear in 1914, the great catastrophe would have been avoided. Whether or not there is any force in that allegation, His Majesty’s Government are resolved that on this occasion there shall be no such tragic misunderstanding.
“If the case should arise, they are resolved, and prepared, to employ without delay all the forces at their command, and it is impossible to foresee the end of hostilities once engaged. It would be a dangerous illusion to think that, if war once starts, it will come to an early end even if a success on any one of the several fronts on which it will be engaged should have been secured.” (TC-72 No. 56).
The Prime Minister therefore urged the German government to try to solve the difficulty without recourse to the use of force. He suggested that a truce should be declared while direct discussions between the two governments, Polish and German, might take place. Prime Minister Chamberlain concluded:
“At this moment I confess I can see no other way to avoid a catastrophe that will involve Europe in war. In view of the grave consequences to humanity, which may follow from the action of their rulers, I trust that Your Excellency will weigh with the utmost deliberation the considerations which I have put before you.” (TC-72 No. 56).
On the following day, 23 August, Hitler replied to Prime Minister Chamberlain. He started off by saying that Germany has always sought England’s friendship, and went on to say that Germany, “like every other State, possesses certain definite interests which it is impossible to renounce.” The letter continued as follows: