What nazi ideology led to the mass murder of jews known as the holocaust

Which of these did the soviet union do in 1961? it built a wall through berlin to keep people from moving to the west. it used force to destroy a wall the united states had built in berlin. it convinced the british and french to merge their zones in berlin with the soviet zone. it threatened to bomb berlin if the united states did not leave within 30 days.

The code name for the invasion of europe was called operation ° overlord ° juno °torch

Otto von bismarck once said that a great war might someday be caused by some damed foolish thing in the balkans was he right, explain