Foreign Office, John King and Ernest Oldham, had independently sold in the early 1930s the Foreign Office's codes to the NKVD, the Soviet secret police, and so the Soviets read all of the Foreign Office's cables throughout the 1930s. The mysterious packages were from the NKVD, which wanted to make it appear that an Anglo-Soviet alliance was in the offering as a way of frightening Germany to come to terms with Moscow. On 18 May 1939, during a meeting with Halifax, Dirksen was informed that the Reich should have no illusions about Britain's willingness to go to war, and that if Germany should attack Poland, Britain would go to war. In response, an angry Dirsken told Halifax that Germany's policy had always been seeking peacefully to revise the Treaty of Versailles, Germany had no intention of invading Poland and Halifax had fallen victim to anti-German hysteria in believing otherwise. Dirksen often reported to Berlin the British efforts to built a "peace front" to be blocked by the question of including the Soviet Union. On 27 May 1939, Chamberlain told the House of Commons that the cabinet had instructed Sir William Seeds, the British ambassador to the Soviet Union, to open discussions on a military alliance. Dirken reported to the Wilhelmstrasse that Chamberlain had opened the talks with the Soviets "with the greatest reluctance" and that he was not keen on an alliance with the Soviet Union. Dirksen reported that the British had learned about the "German feelers in Moscow" and were "afraid that Germany might succeed in keeping Soviet Russia neutral or even inducing her to adopt benevolent neutrality. That would have meant the complete collapse of the encirclement action". On 24 June 1939, Dirksen, in a dispatch, to Berlin reported that his efforts to turn the British against the "guarantee" of Poland were bearing fruit, and he stated that he believed the British government to be moving away from the "encirclement" of Germany towards a "more constructive policy". Dirksen reported on the same day that British public opinion had been caught up in anti-German "hysteria" in the spring but that he now believed that public opinion was in a "state of flux" since the full implications of war with Germany had started to be felt. As evidence, Dirksen quoted to Weizsäcker from several letters to the editor of The Times attacking the Poles for refusing to allow Danzig to