All of the mentioned
Explanation:
- After WW1 and peace treaty of Versailles many countries were unsatisfied, especially Germany and Italy.
- Because of that rise of Nationalism in those countries was pretty obvious, especially after the economical crisis.
- Idea of creation League of Nation was not sufficient as many countries didn't wanted to be involve it.
- Additionally, Great forces practically allowed Germany and Italy to gain control over some territories, without practically any opposition.
Learn more on 1939 on
https://brainly.com/question/1339558
https://brainly.com/question/1101796
https://brainly.com/question/1375305
#learnwithBrainly