Why did the period of national harmony end?

Where were the trials to review evidence in cases against high-ranking nazi officials accused of war crimes held?

Which statement describes an important outcome of the congress of vienna? a. napoleon launched his final european military campaigns. b. european states had their borders clearly defined. c. jewish people were given equal right in germanic states d. the slave trade became increasingly important to european economies.

Brainliestttme : ) what economic changes occurred after world war ii? ( economic boom, baby boom, g.i. bill of rights)