Which event is most closely linked with the concept of the Iron Curtain in geopolitical terms?

The correct answer is the Berlin Blockade, as this event is a significant manifestation of the Iron Curtain concept that emerged during the early Cold War. The Iron Curtain refers to the ideological and physical boundary that divided Western Europe, which was aligned with the United States and democracy, from Eastern Europe, which was dominated by the Soviet Union and communism.

The Berlin Blockade, which occurred from 1948 to 1949, involved the Soviet Union blocking all ground access to West Berlin in an attempt to exert control over the city and ultimately force the Allies out. In response, the United States and its allies organized the Berlin Airlift to supply West Berlin with food and resources, symbolizing the stalemate and tension between Eastern and Western powers. This event highlighted the stark division of Europe and clearly illustrated the geopolitical implications of the Iron Curtain.

While the other options also hold significance in Cold War history, they do not encapsulate the Iron Curtain in the same direct way. The establishment of the United Nations aimed to foster international cooperation and prevent conflicts rather than highlighting divisions. The Yalta Conference revolved around post-war arrangements and discussions among Allied leaders, setting the stage for the Cold War but not specifically representing the Iron Curtain itself. The Korean War was a