In fact, nothing serious happened there, Fuehrer ‘just’ condemned ‘Czechia’ as an ‘artificial state’. He was waiting for the nerves of others to crack. As we now know, he really had one - it was October 1, when the German army should have marched into Czechoslovakia if till then no agreement is reached. Unsuccessful revolt of Sudeten Germans on September 13 was rather couter-productive, turning many indifferent of them to realize that they were not disloyal to Czechoslovakia nor wished to leave the existing state. According to Taylor , the main responsibility for decision had the French, although the British had to make the final decisive response. American isolationism was at its’ height, no other power wished to fight, maybe except of the Soviet Union.

Chamberlain’s three visits
By August 1938, British Government began to realize that any agreement could be obtained only by direct contact with Berlin. Chamberlain considered it his duty to make the attempt and negotiate a deal with Hitler. He got the permission of the Cabinet and visited Fuehrer, without consulting the French before the decision.
The first Prime Minister’s visit to Germany in Berchtesgaden, on September 15, astonished the Czech government. Hitler demanded the absorption of the Sudetenland. It is important to stress that the question of annexation had yet never been raised either by the German Government of by Henlein. Chamberlain, coming without an interpreter to take note of what they said, without any specific proposals in his mind, agreed on German requests very easily. He left the meeting with the impression that Hitler “was a man to be trusted to keep his word”. He seemed to have forgotten how many times it had already been broken.
On September 18, the French delegation met with the British in London to discuss the Chamberlain’s meeting. Daladier, as prophetic anti-appeaser, disagreed with outcomes of Chamberlain’s visit in Berchtesgaden. Finally, he gave away with an important condition – and that Great Britain would join in guaranteeing the Czechoslovakia that remained after the annexation of the Sudetenland, because he forsaw that German aims would not stop at taking part of Czechoslovakia.
On September 20 the Czechoslovak government rejected the Anglo-French proposals for settling the problem at once by transfering all areas with more than 50 percent Sudeten-German population. On the 21st, they were given an ultimatum. At midday they accepted it unconditionally, although reluctantly.
Then, on September 22, Churchill went to Hitler again, this time to Godesberg.