The Munich Agreement was made signed as Hitler wanted to take Sudetenland in 1938. Hitler encouraged the Sudeten Nazis to unify with Germany, and the Sudeten Nazis agreed. Hitler told them to make a lie that they were being ill-treated by the Czechoslovakia's government, not only that the Nazis of Sudetenland started riots and force the government to give Germany Sudetenland, so Hitler made and excuse to invade Czechoslovakia. <Tab/>After that …showed first 75 words of 724 total…

…showed last 75 words of 724 total…with Hitler saying that Germany would not go to war with Britain ever again, but then Britain declared war on Germany, so it is clear that Chamberlain's policy of appeasement to Hitler had failed). <Tab/>So, I think Munich agreement is the biggest cause of the war, because it then leads from one event to another, unlike the invasion of Czechoslovakia, which is just one of the result of Munich agreement.