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February 4-11 1945
“The Yalta Conference, also known as the Crimea Conference, was a meeting held between the three major Allied leaders of the Second World War, namely American President Franklin Roosevelt, British Prime Minister Winston Churchill, and Soviet Premier Joseph Stalin to plan the occupation of Nazi Germany and decide the fate of post-war Europe.”(kidskonnect)

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July 17 - August 2, 1945
“The Big Three—Soviet leader Joseph Stalin, British Prime Minister Winston Churchill (replaced on July 26 by Prime Minister Clement Attlee), and U.S. President Harry Truman—met in Potsdam, Germany, from July 17 to August 2, 1945, to negotiate terms for the end of World War II. …  the negotiators confirmed the status of a demilitarized and disarmed Germany under four zones of Allied occupation.”(Office of the Historian)

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October 24, 1945
“The United Nations (UN) is an organization between countries established on 24 October 1945 to promote international cooperation.---The goals of the United Nations are: to keep world peace- to help countries get along - to improve living conditions for people all over the world - and to make the world a better place.”

(kiddle)

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March 5, 1946
“Iron Curtain speech, speech delivered by former British prime minister Winston Churchill in Fulton, Missouri, on March 5, 1946, in which he stressed the necessity for the United States and Britain to act as the guardians of peace and stability against the menace of Soviet communism, which had lowered an “iron curtain” across Europe. …  but Churchill used it to refer specifically to the political, military, and ideological barrier created by the U.S.S.R. following World War II to prevent open contact between itself and its dependent eastern and central European allies on the one hand and the West and other noncommunist regions on the other.”(britannica)

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August 24, 1949
“The North Atlantic Treaty Organization (NATO), or North Atlantic Alliance, the Atlantic Alliance, the Western Alliance, is a military alliance. It was established by the North Atlantic Treaty in 1949 and it was signed in Washington, D.C., USA, on April 4, 1949.” (kiddle)

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March 12, 1947

“The Truman Doctrine was a proclamation by United States President Harry S. Truman on March 12, 1947. It stated that the U.S. would support Greece and Turkey with economic and military aid, to prevent their falling into the Soviet sphere. The Doctrine shifted American foreign policy in regard to the Soviet Union from détente to, as George F. Kennan phrased it, a policy of containment of Soviet expansion. Historians often use the announcement of the doctrine to mark the starting date of the Cold War. Aid was agreed by the United States government to be given to both Greece and Turkey.” (New World Encyclopedia)

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April 3, 1948
The Marshall Plan, also known as the European Recovery Program, was a U.S. program providing aid to Western Europe following the devastation of World War II. It was enacted in 1948 and provided more than $15 billion to help finance rebuilding efforts on the continent. The brainchild of U.S. Secretary of State George C (History.com).

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14 May 1955
The Warsaw Pact was a collective defence treaty established by the Soviet Union and seven other Soviet satellite states in Central and Eastern Europe: Albania, Bulgaria, Czechoslovakia, East Germany, Hungary, Poland and Romania (Albania withdrew in 1968) (NATO International).

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June 24, 1948 – May 12, 1949
The Berlin Blockade was an attempt in 1948 by the Soviet Union to limit the ability of the United States, Great Britain and France to travel to their sectors of Berlin, which lay within Russian-occupied East Germany (History.com).

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1948
On October 1, 1949, Chinese Communist leader Mao Zedong declared the creation of the People’s Republic of China (PRC). The announcement ended the costly full-scale civil war between the Chinese Communist Party (CCP) and the Nationalist Party, or Kuomintang (KMT), which broke out immediately following World War II and had been preceded by on and off conflict between the two sides since the 1920’s. The creation of the PRC also completed the long process of governmental upheaval in China begun by the Chinese Revolution of 1911. The “fall” of mainland China to communism in 1949 led the United States to suspend diplomatic ties with the PRC for decades (history.sate.gov).

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Jun 25, 1950 – Jul 27, 1953
Korean War, 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 (britannica.com).

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September 8, 1954
In September of 1954, the United States, France, Great Britain, New Zealand, Australia, the Philippines, Thailand and Pakistan formed the Southeast Asia Treaty Organization, or SEATO. The purpose of the organization was to prevent communism from gaining ground in the region (history.sate.gov).

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The Vietnam War was a long, costly and divisive conflict that pitted the communist government of North Vietnam against South Vietnam and its principal ally, the United States. The conflict was intensified by the ongoing Cold War between the United States and the Soviet Union. More than 3 million people (including over 58,000 Americans) were killed in the Vietnam War, and more than half of the dead were Vietnamese civilians.  https://www.history.com/topics/vietnam-war/vietnam-war-history#:~:text=The%20Vietnam%20War%20was%20a,States%20and%20the%20Soviet%20Union. ( History.com)

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On October 4, 1957, the USSR launched Sputnik, the first artificial satellite to orbit Earth. The satellite, an 85-kilogram (187-pound) metal sphere the size of a basketball, was launched on a huge rocket and orbited Earth at 29,000 kilometers per hour (18,000 miles per hour) for three months. When it finally fell out of orbit in January 1958, Sputnik had traveled 70 million kilometers (43.5 million miles) around the planet. The only cargo onboard Sputnik was a low-power radio transmitter, which broadcast a beeping noise at regular intervals. This beeping could be heard by radio listeners around the world.

https://education.nationalgeographic.org/resource/ussr-launches-sputnik (National Geographic)

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The Bay of Pigs invasion begins when a CIA-financed and -trained group of Cuban refugees lands in Cuba and attempts to topple the communist government of Fidel Castro. The attack was an utter failure. Fidel Castro had been a concern to U.S. policymakers since he seized power in Cuba with a revolution in January 1959.

https://www.history.com/this-day-in-history/the-bay-of-pigs-invasion-begins#:~:text=The%20Bay%20of%20Pigs%20invasion%20begins%20when%20a%
( History.com)

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The Berlin Wall was a barrier that divided Germany from 1961 to 1989. Constructed by the German Democratic Republic (GDR, East Germany) starting on August 13, 1961, the Wall completely cut off West Berlin from surrounding East Germany and from East Berlin until government officials opened it in November 1989.  https://courses.lumenlearning.com/suny-hccc-worldhistory2/chapter/the-building-of-the-berlin-wall/#:~:text=Overview-,The%20Berlin%20Wall%20was%20a%20barrier%20that%20divided%20Germany%20from,opened%20it%20in%20November%201989.

(Courses.lumenlearning.com)

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During the Cuban Missile Crisis, leaders of the U.S. and the Soviet Union engaged in a tense, 13-day political and military standoff in October 1962 over the installation of nuclear-armed Soviet missiles on Cuba, just 90 miles from U.S. shores.In a TV address on October 22, 1962, President John F. Kennedy (1917-63) notified Americans about the presence of the missiles, explained his decision to enact a naval blockade around Cuba and made it clear the U.S. was prepared to use military force if necessary to neutralize this perceived threat to national security. Following this news, many people feared the world was on the brink of nuclear war. However, disaster was avoided when the U.S. agreed to Soviet leader Nikita Khrushchev’s (1894-1971) offer to remove the Cuban missiles in exchange for the U.S. promising not to invade Cuba. Kennedy also secretly agreed to remove U.S. missiles from Turkey. https://www.history.com/topics/cold-war/cuban-missile-crisis#:~:text=During%20the%20Cuban%20Missile%20Crisis,90%20miles%20from%20U.S.%20shores. (History.com)

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The lunar module Eagle of the Apollo 11 mission landed on the Moon on July 20, 1969. Neil Armstrong and Buzz Aldrin became the first people to land on the Moon and walk on the lunar surface.Apollo 11 was the culmination of the Apollo program and a massive national commitment by the United States to beat the Soviet Union in putting people on the Moon. https://www.britannica.com/topic/Apollo-11

(Britannica.com)

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Détente (a French word meaning release from tension) is the name given to a period of improved relations between the United States and the Soviet Union that began tentatively in 1971 and took decisive form when President Richard M. Nixon visited the secretary-general of the Soviet Communist party, Leonid I. Brezhnev, in Moscow, May 1972.
(https://www.history.com/topics/cold-war/detente)

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Détente (a French word meaning release from tension) is the name given to a period of improved relations between the United States and the Soviet Union that began tentatively in 1971 and took decisive form when President Richard M. Nixon visited the secretary-general of the Soviet Communist party, Leonid I. Brezhnev, in Moscow, May 1972.

Both countries stood to gain if trade could be increased and the danger of nuclear warfare reduced. In addition, Nixon-a candidate for reelection-was under fire at home from those demanding social change, racial equality, and an end to the Vietnam War. The trip to Russia, like his historic trip to China a few months earlier, permitted him to keep public attention focused on his foreign policy achievements rather than his domestic problems. Nixon's trip to China had also heightened the Soviets' interest in détente; given the growing antagonism between Russia and China, Brezhnev had no wish to see his most potent rivals close ranks against him.

On May 22 Nixon became the first U.S. president to visit Moscow. He and Brezhnev signed seven agreements covering the prevention of accidental military clashes; arms control, as recommended by the recent Strategic Arms Limitation Talks ( salt); cooperative research in a variety of areas, including space exploration; and expanded commerce. The salt treaty was approved by Congress later that summer, as was a three-year agreement on the sale of grain to the Soviets. In June 1973, Brezhnev visited the United States for Summit II; this meeting added few new agreements, but did symbolize the two countries' continuing commitment to peace. Summit III, in June 1974, was the least productive; by then, the salt talks had ground to a halt, several commercial agreements had been blocked in Congress because of Soviet treatment of Jews, and the Watergate investigation was approaching a climax. Nixon's successor in the talks, President Jimmy Carter, supported salt ii, but also pressed a military buildup and a human rights campaign, which cooled relations between the countries. With the election of Ronald Reagan, who emphasized military preparedness as the key to Soviet-American relations, détente as Nixon had envisioned it came to an end.

The Reader's Companion to American History. Eric Foner and John A. Garraty, Editors. Copyright © 1991 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Détente (a French word meaning release from tension) is the name given to a period of improved relations between the United States and the Soviet Union that began tentatively in 1971 and took decisive form in 1972 when President Richard Nixon visited Secretary General of the Soviet Communist party, Leonid Brezhnev, in Moscow.

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Soviet President Leonid Brezhnev and U.S. President Richard Nixon, meeting in Moscow, sign the Strategic Arms Limitation Talks (SALT) agreements. At the time, these agreements were the most far-reaching attempts to control nuclear weapons ever.

https://www.history.com/this-day-in-history/salt-agreements-signed

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On December 24, 1979, the Soviet Union invades Afghanistan, under the pretext of upholding the Soviet-Afghan Friendship Treaty of 1978.

https://www.history.com/this-day-in-history/soviet-tanks-roll-into-afghanistan

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Perestroika (“restructuring” in Russian) refers to a series of political and economic reforms meant to kick-start the stagnant 1980s economy of the Soviet Union.

https://www.history.com/topics/cold-war/perestroika-and-glasnost

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On November 9, 1989, as the Cold War began to thaw across Eastern Europe, the spokesman for East Berlin’s Communist Party announced a change in his city’s relations with the West. Starting at midnight that day, he said, citizens of the GDR were free to cross the country’s borders. East and West Berliners flocked to the wall, drinking beer and champagne and chanting “Tor auf!” (“Open the gate!”). At midnight, they flooded through the checkpoints.

https://www.history.com/topics/cold-war/berlin-wall

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Table of Contents

1. The Berlin Wall: The Partitioning of Berlin

2. The Berlin Wall: Blockade and Crisis

3. The Berlin Wall: Building the Wall

4. The Berlin Wall: 1961-1989

5. The Berlin Wall: The Fall of the Wall

On August 13, 1961, the Communist government of the German Democratic Republic (GDR, or East Germany) began to build a barbed wire and concrete "Antifascistischer Schutzwall," or "antifascist bulwark," between East and West Berlin. The official purpose of this Berlin Wall was to keep so-called Western "fascists" from entering East Germany and undermining the socialist state, but it primarily served the objective of stemming mass defections from East to West. The Berlin Wall stood until November 9, 1989, when the head of the East German Communist Party announced that citizens of the GDR could cross the border whenever they pleased. That night, ecstatic crowds swarmed the wall. Some crossed freely into West Berlin, while others brought hammers and picks and began to chip away at the wall itself. To this day, the Berlin Wall remains one of the most powerful and enduring symbols of the Cold War.

The Berlin Wall: The Partitioning of Berlin

Berlin's Animal Arms Race

As World War II came to an end in 1945, a pair of Allied peace conferences at Yalta and Potsdam determined the fate of Germany's territories. They split the defeated nation into four "allied occupation zones": The eastern part of the country went to the Soviet Union, while the western part went to the United States, Great Britain and (eventually) France.

Even though Berlin was located entirely within the Soviet part of the country (it sat about 100 miles from the border between the eastern and western occupation zones), the Yalta and Potsdam agreements split the city into similar sectors. The Soviets took the eastern half, while the other Allies took the western. This four-way occupation of Berlin began in June 1945.

The Berlin Wall: Blockade and Crisis

The existence of West Berlin, a conspicuously capitalist city deep within communist East Germany, "stuck like a bone in the Soviet throat," as Soviet leader Nikita Khrushchev put it. The Russians began maneuvering to drive the United States, Britain and France out of the city for good. In 1948, a Soviet blockade of West Berlin aimed to starve the western Allies out of the city. Instead of retreating, however, the United States and its allies supplied their sectors of the city from the air. This effort, known as the Berlin Airlift, lasted for more than a year and delivered more than 2.3 million tons of food, fuel and other goods to West Berlin. The Soviets called off the blockade in 1949.

Did you know? On October 22, 1961, a quarrel between an East German border guard and an American official on his way to the opera in East Berlin very nearly led to what one observer called "a nuclear-age equivalent of the Wild West Showdown at the O.K. Corral." That day, American and Soviet tanks faced off at Checkpoint Charlie for 16 hours. Photographs of the confrontation are some of the most familiar and memorable images of the Cold War.

After a decade of relative calm, tensions flared again in 1958. For the next three years, the Soviets-emboldened by the successful launch of the Sputnik satellite the year before during the " Space Race " and embarrassed by the seemingly endless flow of refugees from east to west (nearly 3 million since the end of the blockade, many of them young skilled workers such as doctors, teachers and engineers)-blustered and made threats, while the Allies resisted. Summits, conferences and other negotiations came and went without resolution.

Meanwhile, the flood of refugees continued. In June 1961, some 19,000 people left the GDR through Berlin. The following month, 30,000 fled. In the first 11 days of August, 16,000 East Germans crossed the border into West Berlin, and on August 12 some 2,400 followed-the largest number of defectors ever to leave East Germany in a single day.

The Berlin Wall: Building the Wall

That night, Premier Khrushchev gave the East German government permission to stop the flow of emigrants by closing its border for good. In just two weeks, the East German army, police force and volunteer construction workers had completed a makeshift barbed wire and concrete block wall -the Berlin Wall-that divided one side of the city from the other.

Before the wall was built, Berliners on both sides of the city could move around fairly freely: They crossed the East-West border to work, to shop, to go to the theater and the movies. Trains and subway lines carried passengers back and forth. After the wall was built, it became impossible to get from East to West Berlin except through one of three checkpoints: at Helmstedt ("Checkpoint Alpha" in American military parlance), at Dreilinden ("Checkpoint Bravo") and in the center of Berlin at Friedrichstrasse ("Checkpoint Charlie"). (Eventually, the GDR built 12 checkpoints along the wall.) At each of the checkpoints, East German soldiers screened diplomats and other officials before they were allowed to enter or leave. Except under special circumstances, travelers from East and West Berlin were rarely allowed across the border.

The Berlin Wall: 1961-1989

The construction of the Berlin Wall did stop the flood of refugees from East to West, and it did defuse the crisis over Berlin. (Though he was not happy about it, President John F. Kennedy conceded that "a wall is a hell of a lot better than a war.") Almost two years after the Berlin Wall was erected, John F. Kennedy delivered one of the most famous addresses of his presidency to a crowd of more than 120,000 gathered outside West Berlin's city hall, just steps from the Brandenburg Gate. Kennedy's speech has been largely remembered for one particular phrase. "I am a Berliner."

In all, at least 171 people were killed trying to get over, under or around the Berlin Wall. Escape from East Germany was not impossible, however: From 1961 until the wall came down in 1989, more than 5,000 East Germans (including some 600 border guards) managed to cross the border by jumping out of windows adjacent to the wall, climbing over the barbed wire, flying in hot air balloons, crawling through the sewers and driving through unfortified parts of the wall at high speeds.

The Berlin Wall: The Fall of the Wall

On November 9, 1989, as the Cold War began to thaw across Eastern Europe, the spokesman for East Berlin's Communist Party announced a change in his city's relations with the West. Starting at midnight that day, he said, citizens of the GDR were free to cross the country's borders. East and West Berliners flocked to the wall, drinking beer and champagne and chanting "Tor auf!" ("Open the gate!"). At midnight, they flooded through the checkpoints.

More than 2 million people from East Berlin visited West Berlin that weekend to participate in a celebration that was, one journalist wrote, "the greatest street party in the history of the world." People used hammers and picks to knock away chunks of the wall-they became known as "mauerspechte," or "wall woodpeckers"-while cranes and bulldozers pulled down section after section. Soon the wall was gone and Berlin was united for the first time since 1945. "Only today," one Berliner spray-painted on a piece of the wall, "is the war really over."

The reunification of East and West Germany was made official on October 3, 1990, almost one year after the fall of the Berlin Wall.

HISTORY Vault: Declassified: Rise and Fall of the Wall

Mine formerly guarded vaults and archives around the world to reveal untold stories about the brutal life and catastrophic death of the Berlin Wall, a central symbol of the 20th century's longest and deadliest war.

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On August 13, 1961, the Communist government of East Germany began to build a barbed wire and concrete "Antifascistischer Schutzwall," or "antifascist bulwark," between East and West Berlin. The official purpose of the Berlin Wall was to keep Western "fascists" from entering East Germany and undermining the socialist state, but it primarily served the objective of stemming mass defections from East to West.

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Representatives from Soviet republics (Ukraine, Georgia, Belarus, Armenia, Azerbaijan, Kazakhstan, Kyrgyzstan, Moldova, Turkmenistan, Tajikistan, and Uzbekistan) had already announced that they would no longer be part of the Soviet Union. Instead, they declared they would establish a Commonwealth of Independent
https://www.history.com/topics/cold-war/fall-of-soviet-unio