Answer:
The major causes of World War II were numerous. They include the impact of the Treaty of Versailles following WWI, the worldwide economic depression, failure of appeasement, the rise of militarism in Germany and Japan, and the failure of the League of Nations. The most extreme political aspirant to emerge from this situation was Adolf Hitler, leader of the Nazi Party. The Nazis took totalitarian power in Germany beginning in 1933 and demanded the undoing of the Versailles provisions.