Nazi Party - Realism

Today I am introducing you to a good example of the representative of realism.

It is Nazi Party, a political party in Germany between 1919 and 1945. Adolf Hitler is notorious for his dictatorship in its party. What he did during his administration applies to the theory of realism.
First, he extended the territory of German to Poland, Czech Republic, and the Soviet Union for providing the surplus population in Germany with the enough space to live.
Second, he was a extreme racist on Jewish, homosexuality, and disabled people because Hitler believed that he should segregate such kind of people in order to let noble German thrive for eternity. He also took it for granted that superior nations can usurp other countries' lands or natural resources.

The core belief of realism is that self-interested states compete for power and security. Nazi party and Adolf Hitler is the very organization and people that survived under the principle of realism.