The document provides an introduction to the Cold War between the United States and USSR after World War II. It discusses the conflicting goals between capitalism and communism that led to the rivalry, including who would be the dominant superpower. Key events that exacerbated tensions included the Marshall Plan, the Berlin Airlift, the formation of NATO in response to the Soviet-controlled Warsaw Pact, and the Korean War. The Cold War had impacts both internationally through proxy wars around the world, and domestically in the US through fears around communism.