Which term describes the boundary between Soviet-controlled Eastern Europe and Western Europe during the Cold War?

• A. Berlin Wall
• B. Curtain of Division
• C. United Nations
• D. Iron Curtain

Answer: (D)

The term describes the dividing line between Soviet-controlled Eastern Europe and Western Europe during the Cold War. It captures the ideological and political split—communist governments and satellites on one side, Western democracies and capitalism on the other—along with the sense of separation and restricted movement between the two spheres. This boundary was more about a political and cultural divide than a single physical barrier, though a concrete symbol of separation later appeared in the Berlin Wall. The other options don’t fit as a continental boundary: the Berlin Wall was a specific obstacle in one city, not the whole boundary; Curtain of Division isn’t a standard term; and the United Nations is an international organization, not a boundary.