Question

What were two reasons for World War II?
-separation of nationalities
-territorial disputes over lost territories
-settlement in the previous war suited the monarchs

Answer 1

The answers you may be looking for are:

1. Separation of nationalities
2. Territorial disputes over lost territories

A great example for the territorial disputes was when Hitler sent the Wehrmacht to retake Poland which was part of the German empire at one point.

Answer 2

put WW2 - OverSimplified (Part 1)

hope i helped