Answer:
D
Explanation:
Due to the size, and expansion of the war, it is very costly.
Yes, it is true that the Treaty of Versailles was violated by Hitler's military build-up, since the treaty expressly prohibited the German military from reaching this size. Many European powers "turned their heads" however, since they didn't want to engage in another conflict.
Avoid making mistakes in the future and <span>understand human nature and behavior</span>
A. Ideologies of the justices and B. evolving attitudes.