The Cold War Practice Test

A plan for immediate German reunification required temporary barriers to prevent celebrations from spreading to neighboring countries.

A massive outflow of skilled workers and citizens undermined East Germany’s legitimacy and economy, so authorities restricted movement to stabilize the regime.

A NATO invasion of East Berlin had already begun, so the Wall was built to protect Western troops from Soviet artillery.

A UN mandate required Germany to build a border wall as part of postwar reparations, enforced by neutral peacekeeping forces.

A shortage of land for agriculture required East Germany to annex West Berlin and convert it into collective farms managed by COMECON.