The Czechoslovaks were appalled by the colonization of Munich. They were not invited to the conference and felt betrayed by the British and French governments. Many Czechs and Slovaks refer to the Munich Agreement as the Munich diktat (Czech: Mnichovský diktát; Slovak: Mníchovský diktát). the phrase «betrayal of Munich» (Czech: Mnichovská zrada); In Slovak: Mníchovská zrada) is also used because Czechoslovakia`s military alliance with France proved useless. This was also reflected in the fact that the French Government, in particular, considered that Czechoslovakia would be held responsible for a Resulting European war if the Czechoslovak Republic defended itself by force against German incursions.  In 1938, the Soviet Union was allied with France and Czechoslovakia. By September 1939, the Soviets were in every way a competitor of Nazi Germany, with Stalin fearing a second Munich agreement with the Soviet Union, which replaced Czechoslovakia. Thus, the agreement indirectly contributed to the outbreak of war in 1939.  The American historian William L. Shirer estimated in his article The Rise and Fall of the Third Reich (1960) that although Czechoslovakia did not bluff about its invasion intention, it could have resisted significantly. Shirer felt that Britain and France had enough air defense to avoid a serious bombing of London and Paris and that they could have waged a quick and fruitful war against Germany.
 He quotes Churchill as saying that the agreement means that «Britain and France were in a much worse position than Hitler`s Germany.»  After personally inspecting the Czech fortifications, Hitler privately told Joseph Goebbels that «we shed a lot of blood» and that it was fortunate that there was no fighting.  The British and French bet that Hitler kept his word and that they could react if he didn`t. In retrospect, however, neither was well positioned to respond to German aggression. Appeasement made sense with the cavege that if evidence appeared that it did not work, it would instead exchange a more deterrent attitude. It also follows that Britain should revolt and maintain its will, which it has not done. The conclusion of this research is that this gap is dangerously analogous to today`s Iran deal. U.S. leaders like President Obama and presumptive Democratic candidate Hilary Clinton are proposing to respond quickly with sanctions if Iran violates the conditions. The president said, «If Iran violates the deal within the next decade, all sanctions can take effect again.» (Obama 2015) I think Iran expects this not to happen or be ineffective – or too late to avoid nuclear rearmament.
The best reason why Hitler`s aggression was not seen as an immediate threat and appeasement was chosen as a strategy is the Allies` illusory appreciation of Hitler. «The main reason for the failure of appeasement was that Hitler`s goals went far beyond the limits of reasonable precautions that the soothing wanted to consider.» (Rock 2000, 49) The slogan «On us, without us!» (Czech: O nás bez nás!) summarizes the feelings of the people of Czechoslovakia (now Slovakia and the Czech Republic) towards the agreement. [Citation required] With the handing over of the Sudetenland to Germany, Czechoslovakia (as the state has just been renamed) lost its defensive border with Germany and its fortifications. . . .