Originally Posted by Tristan Scott

Hitler was way out on a limb over Czechoslavakia. By the end of September the French, who had rejected Hitler's demands for the Sudetenland, were fully mobilizing sixty divisions on her frontier with Germany, against which Hitler could barely muster a dozen divisions, half of which were reserve units. The Czechs themselves had mobilized a million men-more than Hitler had for both fronts. When Hitler's deadline to the Czechs hadpassed, He had to be persuaded to call off the attack by Mussolini, who suggested the Munich conference. All indications are that not for this Hitler would have recklessly attacked and probably been defeated-bear in mind also that the German people were not enthusiastic for war over the Sudetenland.

I believe that it's very possible that had Chamberlain shown some backbone that the Nazis could have been crushed in 1938.