Timeline of the Cold War


This is a timeline of the main events of the Cold War, a state of political and military tension after World War II between powers in the Western Bloc and powers in the Eastern Bloc.

1940s

1945

1946

1947

1948

1949

1950s

1950

1951

  • January 4: Chinese soldiers capture Seoul.
  • March 14: United Nations forces recapture Seoul during Operation Ripper. By the end of March, they have reached the 38th Parallel, and formed a defensive line across the Korean Peninsula.
  • March 29: Julius and Ethel Rosenberg are convicted of espionage for their role in passing atomic secrets to the Soviets during and after World War II; they were executed on June 19, 1953.
  • April 11: U.S. President Harry S. Truman fires Douglas MacArthur from command of US forces in Korea due to him demanding nuclear weapons to be used on the enemy.
  • April 18: The European Coal and Steel Community is formed by the Treaty of Paris.
  • April 23: American journalist William N. Oatis is arrested in Czechoslovakia for alleged espionage.
  • May 23: The Seventeen Point Agreement is signed between Tibet and the People's Republic of China, formally annexing Tibet into China itself.
  • September 1: Australia, New Zealand, and the United States sign the ANZUS Treaty. This compels the three countries to cooperate on matters of defense and security in the Pacific.
  • October 10: President Harry S. Truman signs the Mutual Security Act, announcing to the world, and its communist powers in particular, that the U.S. was prepared to provide military aid to "free peoples".
  • November 14: President Harry Truman asks Congress for U.S. military and economic aid for the communist nation of Yugoslavia.
  • December 12: The International Authority for the Ruhr lifts part of the remaining restrictions on German industrial production and on production capacity.

1952

1953

1954

1955

1956

1957

  • January 5: The Eisenhower Doctrine commits the United States to defending Iran, Pakistan, and Afghanistan from Communist influence.
  • January 22: Israeli forces withdraw from the Sinai, which they had occupied the previous year.
  • February 15: Andrei Gromyko begins his long tenure as Foreign Minister of the Soviet Union.
  • March 6: Ghana becomes independent from the UK under Commonwealth status.
  • May 2: Senator Joseph McCarthy succumbs to illness exacerbated by alcoholism and dies.
  • May 15: The United Kingdom detonates its first hydrogen bomb.
  • August 31: Malaya gains independence from the United Kingdom.
  • October 1: The Strategic Air Command initiates 24/7 nuclear alert in anticipation of a Soviet ICBM surprise attack capability.
  • October 4: Sputnik 1 satellite launched. The same day the Avro Arrow is revealed.
  • November 3: Sputnik 2 was launched, with the first living being on board, Laika.
  • November 7: The final report from a special committee called by President Dwight D. Eisenhower to review the nation's defense readiness indicates that the United States is falling far behind the Soviets in missile capabilities, and urges a vigorous campaign to build fallout shelters to protect American citizens.
  • November 15: Soviet leader Nikita Khrushchev claims that the Soviet Union has missile superiority over the United States and challenges America to a missile "shooting match" to prove his assertion.
  • December 16–19: NATO holds its first summit in Paris, France. It is the first time NATO leaders have met together since the signing of the North Atlantic Treaty in April 1949.

1958

1959

  • January 1: Fidel Castro wins the Cuban Revolution and becomes the dictator of Cuba. In the next several years Cuban-inspired guerrilla movements spring up across Latin America.
  • January 2: Luna 1 is launched in an attempt to impact the Moon but due to an error in device's control systems, resulted in the device missing its target by.
  • March 3: Pioneer 4 was launched in an attempt to photograph the Moon. The probe failed to achieve its intended target of from the Moon, reaching only, too distant for its scanners to photograph the Moon.
  • March 10–23: The Tibetan uprising occurs.
  • March 24: New Republic government of Iraq leaves Central Treaty Organization.
  • May 23: The Laotian Civil War begins.
  • July 24: During the opening of the American National Exhibition in Moscow US Vice President Richard Nixon and Soviet First Secretary Khrushchev openly debate the capacities of each Superpower. This conversation is known as the Kitchen Debate.
  • July 31: The Basque conflict officially begins, with the aim of creating an independent state for the Basque people.
  • August 7: Explorer 6 is launched into orbit to photograph the Earth.
  • September: Khrushchev visits U.S. for 13 days, and is denied access to Disneyland. Instead, he visits SeaWorld.
  • September 13: Luna 2 is launched and becomes the first man-made object to reach the surface on the Moon.
  • October 4–22: Luna 3 is launched to take photographs of the far side of the Moon. Approximately 70% of the far side was captured; however, on October 7, only 17 of the 29 photos successfully transmitted back to Earth due to issues with signal strength. On October 22, further contact with Luna 3 was lost.
  • November: The Rwandan Revolution begins.

1960s

1960

1961

1962

1963

1964

1965

1966

1967

1968

1969

1970s

1970

1971

1972

1973

1974

1975

1976

1977

1978

1979

1980s

1980

1981

1982

1983

  • January: Soviet spy Dieter Gerhardt is arrested in New York.
  • March 8: In speech to the National Association of Evangelicals, Reagan labels the Soviet Union an "evil empire".
  • March 23: Ronald Reagan proposes the Strategic Defense Initiative.
  • June 5: The Second Sudanese Civil War begins.
  • July 7: Ten-year-old American child Samantha Smith accepts the invitation of Soviet leader Yuri Andropov and visits the Soviet Union with her parents. Smith had written to Andropov to ask if he would "vote to have a war or not?". Smith's letter, published in the Soviet newspaper Pravda, prompted Andropov to reply and invite the girl to the USSR. The widely publicized event leads to other Soviet–American cultural exchanges.
  • July 22: Martial law in Poland is lifted.
  • July 23: The Sri Lankan Civil War begins between the LTTE and the Sri Lankan government.
  • July 30: Sri Lankan government bans all its major communist parties claiming they were involved in ethnic riots, Soviet Union intervenes to unban the parties.
  • August 4: Thomas Sankara overthrows Jean-Baptiste Ouédraogo and becomes president. He also renamed the country of Upper Volta to Burkina Faso a year later.
  • August 19: During a two-hour meeting with 9 democratic senators Soviet Leader Yuri Andropov proposes that the Soviet Union and the United States agree to a complete ban on antisatellite weapons, and he pledged that the Soviet Union would not place any such weapons in space as long as other countries refrain from doing so.
  • August 21: Former senator Benigno "Ninoy" S. Aquino was assassinated at Manila International Airport.
  • September 1: Civilian Korean Air Lines Flight 007, with 269 passengers, including U.S. Congressman Larry McDonald, is shot down by Soviet interceptor aircraft.
  • September 26: The 1983 Soviet nuclear false alarm incident occurs. The U.S.S.R. nuclear early warning system reports launch of multiple U.S. intercontinental ballistic missiles. Stanislav Yevgrafovich Petrov, an officer of the Soviet Air Defence Forces, correctly identifies them as false alarms. This decision is seen as having prevented a retaliatory nuclear attack based on erroneous data on the United States and its NATO allies, which likely would have resulted in nuclear war and the deaths of hundreds of millions of people.
  • October 25: U.S. forces invade the Caribbean island of Grenada in an attempt to overthrow the Communist government, expel Cuban troops, and abort the construction of a Soviet-funded airstrip.
  • November 2: Exercise Able Archer 83 – Soviet anti-aircraft misinterpret a test of NATO's nuclear warfare procedures as a fake cover for an actual NATO attack; in response, Soviet nuclear forces are put on high alert.
  • December 10: The National Reorganization Process military junta of Argentina is dissolved by democratically elected president Raúl Alfonsín.

1984

1985

1986

1987

1988

1989

1990s

1990

1991