What are the 5 main causes of World War 2?

The major causes for WW2 was Hitler's Ideologies and Evil vision.

1. Expanding German land and Natural Resources close to home specially through Europe and Russia. He was not convinced for expansion in Africa or away from home colonies.
2. The expansion vision was shared by Mussolini and Japan
3. Clearing the world from Jews, as he believed they are the source of evil in this world beside they are the ones who introduced communism to the world.
4. The domination of the Pure Aryan Race.
5. The vision of Russian communists to create communist allies all over the world, this was clear during the postwar allies' settlement meetings.