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The Cold war started in 1947 after the surrender of Nazi Germany in 1945. This started because the alliance between the United States and Great Britain was uneasy along with the Soviet Union starting to fall apart. It "Officially" ended in 1989 when the soviet leader and US President met. But wasn't fully over until 1991 when the Soviet Union fell apart completely.
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On January 31, 1950 Harry Truman publicly announces his decision to support the making of the Hydrogen bomb. The Hydrogen bomb was to be hundreds times more powerful than the atomic bombs from World War II. -
The first hydrogen bomb in the world was called "Mike" on November 1'st and "King" on November 15th. However this bomb was successfully detonated on November 1'st, 1952 in Pacific Marshall Islands. This 10.4 megaton thermonuclear device, a device that uses nuclear reactions at high temperatures, destroyed and vaporized the island leaving behind a mile wide crater. The Soviet Union detonated their first Hydrogen Bomb three years later on November 22, 1955. -
An American Ping Pong team visited Japan for the 31'st World Table Tennis Championship and received an all expense paid visit tot the people republic. This was the first group of Americans allowed into china since the Communist takeover in 1949. This got its name when 9 players, 4 officials, and 2 spouses stepped from Hong Kong to the Chinese Mainland. On April 14th the U.S. announced plans to remove a 20-year embargo on trade with China. -
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On July 15th Nixon announced his plan to visit china and be the first american president to do so. He mentioned and made his decision after Kissinger's secret mission to Beijing. -
Ronald Reagan ordered the marines to invade and secure the safety on the Caribbean nation of Grenada. Since 1979 Grenada has been a concern of American Officials especially after Marxist took over and violence and protests escalated. The concern for U.S. citizens within rose and troops stormed the island being met by armed forces of the Cuban Military. The U.S sent in nearly 6,000 troops by the end and Reagan called it a great victory but many citizens disagreed.