1. The Cold War

3. Topic 1: Different Ideas The Soviets and the Americans disagreed about many ideas. They had different forms of government, different political party systems, and different economic systems.

5. Topic 2: Eastern Europe The Soviets controlled Eastern Europe, which became separated from Western Europe by different ideas. The United States would not allow Soviets to spread communism.

9. Topic3: The Berlin Blockade The Soviets blocked land traffic into West Berlin, but the United States and Great Britain flew supplies to the city. New alliances clearly divided Europe. The Berlin Wall was built.

14. Topic 4: The Cold War Spreads Anti-Communists revolts in Poland and Hungary were crushed by the Soviets. Fidel Castro brought communism to Cuba, where the presence of Soviet missiles brought about the Cuban Missile Crisis of 1962.

16. Topic 5: The Space Race The Cold War led to a space race. In 1957, the Soviets launched the first satellite. In 1969, the United States sent people to the moon.