To see if even the pieces [of Czechoslovakia] could be saved [Czech Foreign Minister] Chvalkovsky finally prevailed upon Hitler to receive him in Berlin on January 21. It turned out to be a painful scene, though not as painful for the Czechs as one that would shortly follow. The Czech Foreign Minister groveled before the mighty German dictator, who was in one of his most bullying moods. Czechoslovakia, said Hitler, had been saved from catastrophe by “Germany’s moderation.” Nevertheless, unless the Czechs showed a different spirit, he would “annihilate” them. They must forget their “history,” which was “schoolboy nonsense,” and do as the Germans bade. That was their only salvation. Specifically, Czechoslovakia must leave the League of Nations, drastically reduce the size of her Army – “because it did not count anyway” – join the Anti-Comintern Pact, accept German direction of her foreign policy, make a preferential trade agreement with Germany, one condition of which was that no new Czech industries could be established without German consent, dismiss all officials and editors not friendly to the Reich and, finally, outlaw the Jews, as Germany had done under its Nuremberg Laws. (“With us, the Jews will be destroyed,” Hitler told his visitor.) On the same day Chvalkovsky received further demands from Ribbentrop, who threatened “catastrophic consequences” unless the Czechs immediately mended their ways and did as they were told. The German Foreign Minister, so much the lackey in the presence of Hitler but a boor and a bully with anyone over whom he had the upper hand, bade Chvalkovsky not to mention the new German demands to the British and French but just to go ahead an carry them out.
William L. Shirer, The Rise and Fall of the Third Reich, p. 438
"And to do so without worrying about any German guarantee of the Czech frontiers! Apparently there had been little worry about this in Paris and London. Four months had gone by since Munich, and still Hitler had not honored his word to add Germany's guarantee to that given by Britain and France. Finally on February 8 an Anglo-French note verbale was presented in Berlin stating that the two governments "would now be glad to learn the views of the German Government as to the best way of giving effect to the understanding reached at Munich in regard to the guarantee of Czechoslovakia."