(1946)

^{Winston Churchill delivered his famous "Iron Curtain" speech at Westminster College in Missouri where he was joined by President Harry Truman. In this pivotal speech Churchill declared that Europe had been divided by an "iron curtain" that had descended across the Continent separating Soviet dominated Eastern Europe from the democratic Western nations This speech helped define the beginning of the Cold War era by highlighting the growing divide between the Soviet Union and the West. The term Iron Curtain became a powerful symbol that represented the political military and ideological barrier created by the Soviet Union between itself and the non-Communist countries of Europe.}

why did the Iron Curtain speech cause tention -

^{well because the Iron Curtain not only symbolized the Cold War divide between capitalist and communist nations but also led to the creation of opposing alliances and that is mainly why it caused tention}

(1948)-

The Marshall Plan, officially known as the European Recovery Program (ERP), was an American initiative to provide aid to Western Europe after World War II. Announced by U.S. Secretary of State George C. Marshall on June 5, 1947, and implemented in 1948, the plan aimed to rebuild European economies, prevent the spread of communism, and promote political stability. To rebuild war-torn Europe, strengthen its economies, and foster political stability.To prevent the spread of Soviet communism in the context of the Cold War. The U.S. believed that economic instability in Europe could lead to the rise of communist movements.

It was also seen as a way to open new markets for American goods.

In June 1948, the Soviet Union, led by Joseph Stalin, responded to the Western Allies' reforms by blocking all land and water routes into West Berlin, which was under Western control.The Soviets cut off road, rail, and canal access to West Berlin, hoping to force the Allies to abandon the city.The blockade aimed to starve the population of West Berlin, forcing the Allies to accept Soviet demands for a unified, communist Germany.The Soviet Union also attempted to create a currency reform in East Germany (including East Berlin), which the Western Allies rejected. The introduction of the Deutsche Mark in West Germany and West Berlin was a direct challenge to Soviet control in the area.