As their land went down their army went down because their men went away with the land. Germany also started having problems economically and I think many would have thought this was the end of Germany, but as many people believe the cause of the Treaty of Versailles led to the rise of Adolph Hitler.
This man at first came as a man that would save his country regain their power, army and economy. The people wanted to get revenge. Although Hitler became insane he helped Germany regain their power.