Explain in what sense was world war ii a product of world war i?

Germany lost the war and was blamed. The Treaty of Versailles was costly for Germany and demanded that they not rearm and that they pay lots of war reparations. When the postwar German Weimar Republic suffered economic problems including hyperinflation, Hitler argued that Germany had been humiliated by the treaty and should fight back. He blamed the problems in the economy on an international Jewish conspiracy. At first he could not get a majority of Germans to follow him, despite their suffering. But eventually, when the worldwide depression hit in the thirties, his moment had come.