I understand your anger. Germany in the twentieth century was trying to become a great power - on a par with USA, Russia, France, England, but failed. As a result of this failure, Germany was occupied by foreign powers, and denied the opportunity to pursue an independent foreign policy. But it is fixable - even Russia in the 14th century was dependent on the Mongol empire.
Germany will be hard to get rid of the occupation, but it is possible. You just need to choose the right side in the coming conflict.