What are characteristics that make new imperialism different from what came before?

Why did the 24th amendment and the civil rights act succeed when other legislation had failed?

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.

What was the “u-2 incident” and how did it affect u. s./soviet relations in 1960?