Before the war Germany was in economic shambles and were humiliated by the Treaty of Versaille and how they lost everything from land to their own pride.They were politically unknown because they had no reliance at that point on any leader. So that is how hitler took adavantage and became the leader.
Who, what, where, when, why
Hitler started what was the second world war, and killed himself before he could have any reprecussions. In germany after the ww2 they ensured that the treaty wasn't going to cause the same thing as the treaty of versaille did so they eased the terms but still made it harsh. They did this so Another war wouldn't breakout because this is how the war started in the first place.