Please help ASAP, just one or two sentences about each one

What was gained through the gadsden purchase

Which state reflects the view on french conservatives after the congress of vienna

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.