Annotated Timeline by Bryan Martinez Alvarado

Yalta Conference (Febuary 1945)

brmart42762 — 2025-05-02 21:46:14 UTC

The Yalta conference brought together world leaders who were FDR, Winston Churchill, and Joseph Stalin, known as the "Big Three." They meet to discuss post-World War II arrangements. They also discussed how to deal with defeated Germany and liberated Europe. One major decision was to divide Germany into four occupation zones controlled by the U.S., U.K., USSR, and France. They also agreed to hold free elections in Eastern Europe. Plans were created to make the League of Nations, which was later replaced with the United Nations.

Potsdam Conference (July 1945)

brmart42762 — 2025-05-02 21:50:58 UTC

Truman, Stalin, and Attlee finalized postwar plans. Truman took a harder stance and showed that he had a powerful atomic bomb. Disagreements grew over Eastern Europe, as Stalin refused for their to be free elections. This meeting deepened mistrust and eventually led to the cold war.

The Cold War (1947-1991)

brmart42762 — 2025-05-02 21:53:40 UTC

The Cold War was an intense tension between the US and the Soviet Union. They had a conflict about different political ideas. The Soviet Union believed communism was the best idea for everyone in the world to join in, whereas the US believed democracy and capitalism were the best way to go. They also competed by building weapons and racing to space. It’s called the “Cold War" because there was no actual fighting between the two main countries.

The Iron Curtains (March 1946)

brmart42762 — 2025-05-02 21:56:54 UTC

Churchill warned that an "Iron Curtain" had fallen across Europe, separating East from the West. He emphasised that the soviet for expansion was a threat. The speech alerted the US public to the growing divide.

Truman Doctrine(March 1947)

brmart42762 — 2025-05-02 22:04:30 UTC

The US pledged to support nations resisting communism, starting with Greece and Turkey. This policy marked the beginning of the Cold War. It established the US as a global defender of democracy. The doctrine aimed to control the influence of communism.

Containment (1947)

brmart42762 — 2025-05-02 22:06:33 UTC

George Kennan proposed containing communism where it already existed. The U.S. would stop its spread through aid, diplomacy, or force. This strategy shaped U.S. foreign policy during the Cold War. It led to American involvement in Korea and Vietnam.

The Marshall Plan (1948)

brmart42762 — 2025-05-02 22:07:25 UTC

The US gave 12 billion to rebuild Western Europe after WWII. This aid helped the spread of communism. The USSR rejected it for itself and its allies. It strengthened Western Europe economically and politically.

Germany Divided (1949)

brmart42762 — 2025-05-02 22:12:03 UTC

Germany was split into four zones: U.S., U.K., France, and USSR. Berlin, though inside the Soviet zone, was also divided. In 1949, it became two separate nations—West Germany and East Germany. The division symbolized the Cold War split between capitalism and communism.

Berlin Blockade (1948–1949)

brmart42762 — 2025-05-02 22:13:29 UTC

The Soviet Union wanted the United States, the United Kingdom, and France to leave Berlin, so they blocked all roads and rivers going into the parts of the city those countries controlled. The Western Allies reacted by starting the Berlin Airlift, where they flew planes into West Berlin to bring food, fuel, and other important supplies.

Berlin Airlift (1948–1949)

brmart42762 — 2025-05-09 21:42:50 UTC

The Soviet Union blocked off West Berlin to try to take control, and the United States and Britain helped by flying in supplies. For 15 months, airplanes brought food, medicine, and fuel to the people in West Berlin. This helped keep them from starving and showed that the U.S. and Britain would not give up trying to help, even though it was surrounded by Soviet land.

The Formation of NATO (1949)

brmart42762 — 2025-05-09 21:44:30 UTC

The U.S. and other Western countries created NATO (North Atlantic Treaty Organization) to protect each other from the Soviet Union. If one country were attacked, the others would help.

Korean War (1950-1953)

brmart42762 — 2025-05-09 21:49:31 UTC

North Korea (communist) invaded South Korea (non-communist). The U.S. and other nations helped South Korea fight back. The war ended with the country still divided.

Berlin Wall Built (1961)

brmart42762 — 2025-05-09 21:51:29 UTC

East Germany built the Berlin Wall to stop citizens from immigrating west. Armed guards enforced the separation. The wall stood until 1989, when communism collapsed in Eastern Europe.

Bay of Pigs Invasion (1961)

brmart42762 — 2025-05-09 21:53:50 UTC

The Bay of Pigs Invasion was a failed attack in 1961 where the U.S. and Cuban exiles tried to remove Fidel Castro from power in Cuba. The plan was for Cuban exiles, trained by the CIA, to invade Cuba and start a rebellion. But the plan didn’t go well, and Castro’s forces quickly stopped them. In the end, the invasion made Castro even stronger.

Cuban Missile Crisis (1962)

brmart42762 — 2025-05-22 02:09:49 UTC

The US discovered the Soviet nuclear bomb on cuba. Kennedy imposed a naval blockade and demanded removal. After negotiations, the USSR agreed to withdraw the missiles. The crisis brought the world close to a nuclear war

The Vietnam War (1965-1973)

brmart42762 — 2025-05-22 02:10:45 UTC

The US tried to prevent communist North vietnam from overtaking the south. The war dragged on and became unpopular at home. In 1973, US troops withdrew, and saigon fell in 1975.

The Antiwar Movement

brmart42762 — 2025-05-22 02:11:24 UTC

People opposed the war in Vietnam, especially students and civil rights activists. Protests and demonstrations were widespread. The movement challenged US policy and influenced public opinion. These protest essentially did a affect and the US had to come up with something.

Nixon’s Trip to China (1972)

brmart42762 — 2025-05-22 03:05:05 UTC

President Nixon visited China to open diplomatic relations. The visit helped isolate the USSR and shifted the balance of power. It was a major foreign policy achievement. It also paved the way for China's integration into global politics.

Détente

brmart42762 — 2025-05-22 03:05:37 UTC

Détente was a period of reduced Cold War tensions. The U.S. and USSR signed arms control agreements like SALT, emphasizing diplomacy and cooperation. Tensions eventually resumed in the 1980s, ending the détente era.

Fall of the Soviet Union (1991)

brmart42762 — 2025-05-22 03:05:59 UTC

The fall of the soviet union eventually came. Where it was from economic issues, political reforms, and independence movements that weakened. In 1991, it officially dissolved into 15 separate countries. The Cold War ended with the collapse of communist control. The US emerged as the sole superpower.