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The United Nations is an international organization founded in 1945 after the Second World War by 51 countries committed to maintaining international peace and security, developing friendly relations among nations, and promoting social progress, better living standards, and human rights. -
With the Truman Doctrine, President Harry S. Truman established that the United States would provide political, military, and economic assistance to all democratic nations under threat from external or internal authoritarian forces. -
Hollywood Ten, in U.S. history, 10 motion-picture producers, directors, and screenwriters who appeared before the House Un-American Activities Committee in October 1947, refused to answer questions regarding their possible communist affiliations, and, after spending time in prison for contempt of Congress. -
The Marshall Plan was a U.S.-sponsored program designed to rehabilitate the economies of 17 western and southern European countries in order to create stable conditions in which democratic institutions could survive in the aftermath of World War II. It was formally called the European Recovery Program. -
The North Atlantic Treaty Organization was created in 1949 by the United States, Canada, and several Western European nations to provide collective security against the Soviet Union. NATO was the first peacetime military alliance the United States entered into outside of the Western Hemisphere. -
Korean War, the conflict between the Democratic People's Republic of Korea (North Korea) and the Republic of Korea (South Korea) in which at least 2.5 million persons lost their lives. The war reached international proportions in June 1950 when North Korea, supplied and advised by the Soviet Union, invaded the South. -
On October 4, 1957, a Soviet R-7 intercontinental ballistic missile launched Sputnik (Russian for “traveler”), the world's first artificial satellite and the first man-made object to be placed into the Earth's orbit. Sputnik's launch came as a surprise, and not a pleasant one, to most Americans. -
Bay of Pigs invasion, (April 17, 1961), abortive invasion of Cuba at the Bahía de Cochinos (Bay of Pigs), or Playa Girón (Girón Beach) to Cubans, on the southwestern coast by some 1,500 Cuban exiles opposed to Fidel Castro. The invasion was financed and directed by the U.S. government. -
60 years ago, the Berlin Wall went up, dividing the city and more. The former capital of Hitler's Third Reich was divided after World War II. But the people of Berlin were still able to move around freely in the city. That is, until August 13, 1961 -
President Johnson launches a three-year campaign of sustained bombing of targets in North Vietnam and the Ho Chi Minh Trail in Operation Rolling Thunder. The same month, U.S. Marines landed on beaches near Da Nang, South Vietnam as the first American combat troops to enter Vietnam. -
On December 24, 1979, the Soviet Union invades Afghanistan, under the pretext of upholding the Soviet-Afghan Friendship Treaty of 1978. As midnight approached, the Soviets organized a massive military airlift into Kabul, involving an estimated 280 transport aircraft and three divisions of almost 8,500 men each. -
It was on 9 November 1989, five days after half a million people gathered in East Berlin in a mass protest, that the Berlin Wall dividing communist East Germany from West Germany crumbled. East German leaders had tried to calm mounting protests by loosening the borders, making travel easier for East Germans.