<h2>answer is:</h2><h2><em>
German princes picked the king weak royal authority, so states of Germany didn't unify during the middle ages.
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keep the Russians from taking over Europe. just too the test and passed
One would be nationalism because it forced all nation states to integrate together and become one same culture and religion ,knowing that not all people have the same religion it would disrespectful to that state and imperialism because It made Europeans seek for land to make more empires and establishes territories such as Asia and Africa .Cause conflict between these multiple areas
The economic systems of north Korea and China are similar because both systems have a centrally planned economy.
