Which of the following was a cause of world war 2?
the munich agreement was unfair to germany because it took too much land away
hitler's enthusiasm for communism worried the non-communist world
the treaty ending world war 1 caused resentment and anger in germany
britain and france took too strong a stand against hitler's aggressions

The Treaty of Versailles ended WWI and its terms were extremely harsh on Germany.  What really upset the German people was that there were no German representatives when the treaty was drafted, in other words, Germany had no say in what happened to it after the war and was forced to sign it.  This lack of representation, and the terms of the treaty, led to serious resentment of how Germany was to make reparations.