As the threats to Germany and the European war have become increasingly evident, opinions have changed. Chamberlain was awarded for his role as one of the “Men of Munich” in books such as the Guilty Men of 1940. A rare defence of the wartime accord came in 1944 from Viscount Maugham, who had been the Lord`s chancellor. Maugham regarded the decision to establish a Czechoslovakian state with large German and Hungarian minorities as a “dangerous experiment” in the face of previous disputes and described the agreement, which stemmed mainly from the need for France to free itself from its contractual obligations in the face of its vagueness to war.  After the war, Churchill`s memoirs of that time, The Gathering Storm (1948), claimed that Chamberlain`s appeasement of Hitler had been wrong in Munich, and noted Churchill`s pre-war warnings about Hitler`s plan of attack and Britain`s folly of disarmament after Germany reached air parity with Britain. While acknowledging that Chamberlain was acting for noble reasons, Churchill argued that Hitler should have resisted in Czechoslovakia and that efforts had to be made to involve the Soviet Union. On 29 and 30 September 1938, an emergency meeting of the major European powers was held in Munich – without Czechoslovakia or the Soviet Union, allied with France and Czechoslovakia. An agreement was quickly reached on Hitler`s terms. It was signed by the leaders of Germany, France, Great Britain and Italy. On the military front, the Sudetenland was of strategic importance to Czechoslovakia, as most of its border defences were there to protect themselves from a German attack.
The agreement between the four powers was signed with low intensity in the context of an undeclared German-Czechoslovak war, which had begun on 17 September 1938. Meanwhile, after 23 September 1938, Poland transferred its military units to the common border with Czechoslovakia.  Czechoslovakia bowed to diplomatic pressure from France and Great Britain and decided on 30 September to cede Germany to Munich conditions. Fearing a possible loss of Zaolzie to Germany, Poland issued an ultimatum to Zaolzie, with a majority of Polish ethnic groups, which Germany had accepted in advance and accepted Czechoslovakia on 1 October.  The Czechoslovakians were appalled by the colony of Munich. They were not invited to the conference and felt betrayed by the British and French governments. Many Czechs and Slovaks describe the Munich agreement as a Munich diktat (Czech: Mnichovska diktéta); in Slovak: Mnechovska diktét). The phrase “Munich betrayal” (Czech: Mnichovska zrada; In Slovak: Mnechovska zrada) is also used because Czechoslovakia`s military alliance with France proved useless.
This is also reflected in the fact that the French government, in particular, had considered that Czechoslovakia would be held responsible for any European war that would result if the Czechoslovak Republic defended itself by force against German abuses. In 1938, the Soviet Union was allied with France and Czechoslovakia.