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United Nations (UN)
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. -
Germany Divided
A Divided Germany
After the Potsdam conference, Germany was divided into four occupied zones: Great Britain in the northwest, France in the southwest, the United States in the south and the Soviet Union in the east. Berlin, the capital city situated in Soviet territory, was also divided into four occupied zones. -
Truman doctrine
The Truman Doctrine was an American foreign policy whose stated purpose was to counter Soviet geopolitical expansion during the Cold War. It was announced to Congress by President Harry S. Truman on March 12, 1947, and further developed on July 4, 1948, when he pledged to contain threats in Greece and Turkey -
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the cold war
During World War II, the United States and the Soviet Union fought together as allies against the Axis powers. However, the relationship between the two nations was a tense one. Americans had long been wary of Soviet communism and concerned about Russian leader Joseph Stalin’s tyrannical rule of his own country. -
Marshall Plan
The Marshall Plan (officially the European Recovery Program, ERP) was an American initiative passed in 1948 to aid Western Europe, in which the United States gave over $12 billion (nearly $100 billion in 2018 US dollars) in economic assistance to help rebuild Western European economies after the end of World War II. -
Berlin Airlift
After World War II, the Allies partitioned the defeated Germany into a Soviet-occupied zone, an American-occupied zone, a British-occupied zone and a French-occupied zone. Berlin, the German capital city, was located deep in the Soviet zone, but it was also divided into four sections. In June 1948, the Russians–who wanted Berlin all for themselves–closed all highways, railroads and canals from western-occupied Germany into western-occupied Berlin. -
NATO
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. -
Kim Il-sung invades South Korea
Kim Il-sung was the first leader of North Korea which he ruled from the country's establishment in 1948 until his death in 1994. He held the posts of Premier from 1948 to 1972 and President from 1972 to 1994. He was also the leader of the Workers' Party of Korea (WPK) from 1949 to 1994. Coming to power after the end of Japanese rule in 1945, he authorized the invasion of South Korea in 1950, triggering an intervention in defense of South Korea by the United Nations led by the United States. -
UN forces push North Korea to Yalu River- the border with China
Those who escaped envelopment and capture were forced back north. UN forces invaded North Korea in October 1950 and moved rapidly towards the Yalu River—the border with China—but on 19 October 1950, Chinese forces of the People's Volunteer Army (PVA) crossed the Yalu and entered the war -
Chinese forces cross Yalu and enter Korean War
the Chinese Army entered the Korean War in earnest with a violent attack against the American and United Nations forces in North Korea. The 300,000-man Chinese offensive caught the U.N. forces off guard, largely because of U.S. Gen. Douglas MacArthur's belief that China would not openly enter the war, and vastly expanded the conflict. The Korean War began when communist North Korean forces invaded democratic South Korea on June 25, 1950. -
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Korean War
World War II divided Korea into a Communist, northern half and an American-occupied southern half, divided at the 38th parallel. The Korean War (1950-1953) began when the North Korean Communist army crossed the 38th Parallel and invaded non-Communist South Korea. As Kim Il-sung's North Korean army, armed with Soviet tanks, quickly overran South Korea, the United States came to South Korea's aid. -
Armistice Signed
the armistice which brought about a complete cessation of hostilities of the Korean War. It was signed by U.S. Army Lieutenant General William Harrison, Jr. representing the United Nations Command, North Korean General Nam Il representing the Korean People's Army, and the Chinese People's Volunteer Army. The armistice was signed on 27 July 1953, and was designed to "ensure a complete cessation of hostilities and of all acts of armed force in Korea until a final peaceful settlement is achieved." -
Ethel and Julius Rosenberg Execution
Julius and Ethel Rosenberg, who were convicted of conspiring to pass U.S. atomic secrets to the Soviets, are executed at Sing Sing Prison in Ossining, New York. Both refused to admit any wrongdoing and proclaimed their innocence right up to the time of their deaths, by the electric chair.
Julius Rosenberg was an engineer for the U.S. Army Signal Corps who was born in New York on May 12, 1918. His wife, born Ethel Greenglass, also in New York, on September 28, 1915, worked as a secretary. -
Warsaw Pact
The Soviet Union and seven of its European satellites sign a treaty establishing the Warsaw Pact, a mutual defense organization that put the Soviets in command of the armed forces of the member states.
The Warsaw Pact, so named because the treaty was signed in Warsaw, included the Soviet Union, Albania, Poland, Romania, Hungary, East Germany, Czechoslovakia, and Bulgaria as members. -
Sputnik I
History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I. The world's first artificial satellite was about the size of a beach ball (58 cm.or 22.8 inches in diameter), weighed only 83.6 kg. or 183.9 pounds, and took about 98 minutes to orbit the Earth on its elliptical path.
