The document summarizes key events of the Cold War era: 1) The Berlin Airlift of 1948-1949 was a response to the Soviet blockade of West Berlin, in which Western allies airlifted supplies to the city to support its residents. Over 200,000 flights delivered enough food and fuel to sustain West Berlin. 2) The Korean War began in 1950 when North Korea invaded South Korea, supported by the Soviet Union and China. After early successes, UN forces pushed the North Koreans back until China entered the war, leading to a stalemate along the original border. 3) The Cuban Missile Crisis of 1962 brought the world closest to nuclear war as the US and Soviet Union confronted each