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AP European History · Unit 8: 20th-Century Global Conflicts

8.8 Postwar Diplomacy

Rebuilding a Shattered Europe

After WWII, Europe faced devastation and division. The United Nations (1945) replaced the failed League of Nations, aiming for collective security. The Marshall Plan (1948) gave U.S. economic aid to rebuild Western Europe, while the Soviets tightened control over Eastern Europe, deepening the emerging Cold War divide.

Cold War Alliances and Division

Europe split into rival blocs: NATO (1949), a Western military alliance led by the U.S., and the Warsaw Pact (1955), its Soviet-led counterpart. Germany itself was divided into West and East Germany, symbolized by the Berlin Wall (1961). Winston Churchill's 'Iron Curtain' speech captured this ideological split.

Toward European Integration

Seeking to prevent future wars and strengthen economies, Western European nations pursued cooperation. The European Coal and Steel Community (1951) and later the European Economic Community (1957, Treaty of Rome) tied national economies together, laying groundwork for eventual deeper integration into what became the European Union.

Key terms

United Nations (1945)
International organization created after WWII to promote peace and collective security, replacing the League of Nations.
Marshall Plan (1948)
U.S. program providing economic aid to rebuild Western European economies after WWII.
NATO vs. Warsaw Pact
NATO (1949): Western military alliance led by the U.S. Warsaw Pact (1955): Soviet-led military alliance countering NATO.
Berlin Wall (1961)
Barrier dividing East and West Berlin, symbolizing Cold War division of Europe.
European Coal and Steel Community (1951)
Early economic union integrating French and German industries, laying the foundation for European integration and the eventual EU.

Try an AP-style question

The United Nations was founded in 1945 to…

  1. control the world economy
  2. maintain peace and promote cooperation
  3. govern Germany alone
  4. replace all national governments
Show the answer

B. Security.

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