Answer:
The Treaty of Versailles against the Germans
Step-by-step explanation:
Adolf Hitler the man that would later lead Germany to World War II was angry after WW1 simply because of the "The Treaty of Versailles against the Germans."
He felt that The Treaty of Versailles is harsh punishment on the socio-political economy of Germany. The Treaty of Versailles forbids some territories and alliances from Germany. It also asked them to pay a high debt as reparations. It also blames Germany for the loss and damages of the war and finally reduce the military personnel of Germany.