Why might many of the states that bordered the Union have decided not to secede?

Describe some effects of the rise of communism in the soviet union?

How and why did british north american colonists fight a revolution to create a constitutional republic, the united states of america?

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.