It was the Aryans or in other terms German race of people were to be like the masters of other races, other races than that were inferior to him and something like that is like a fly on your food, u want to get it off so same with Hitler, he killed lots of Jews, families, homosexuals, and more since they weren't part of his race.
Answer:
the answer is D. a declaration of war against Japan
Explanation:
Lead to unemployment in europe
