The Cold War Divides the World

Start of the Cold War


  • The conflicts that occured started the Cold War between the United States and the Soviet Union.
  • Cold War- a struggle over political differences carried on by means short of military action or war.
  • At the start of 1949, the superpowers used spying, propaganda, diplomacy, and secret operations in other ways witheach other.
  • Most of the world was either for or against one side.
  • Soviet Union finally broke up in 1999.

Superpowers Form Rival Alliances

Berlin blockade heightened western Europe's fear of Soviet aggression.

Ten European countries joined with the United states and Canada to form NATO.

NATO stands for North Atlantic Treaty Organization.

An attack on one member of the NATO would result in all of them joining in the fight.

After NATO was founded, the Soviet Union created Warsaw Pact and included the Soviet Union, East Germany, Czechoslovakia, Poland, Hungary, Romania, Bulgaria, and Albania.

East Germans built a wall to separate themselves from West Berlin.

The Berlin wall symbolized a world divided between two rival people or groups.

A lot of other countries stayed out of these created leagues and also China, who distrusted the Soviet Union, stayed away from both Treaty's.

The Threat of Nuclear War

Alliances were forming, and the Cold War was heating up. The United States had atomic bombs. In 1949, the Soviet Union unveiled their own atomic weapon. President Harry Truman wanted the United States to develop a more powerful weapon, so he authorized work on a thermonuclear weapon in 1950. The H-bomb was thousands of times more powerful than the A-bomb. The U.S. tested the first H-bomb in 1952, but the Soviets exploded their own in 1953. The U.S. stated that if the soviets attacked U.S. interests, they would retaliate instantly. This was known as brinkmanship.

The Cold War in the Skies

  • Cold War affected science and education for two countries
  • the Soviets announced the development of a great rocket
  • Sputnik (first unmanned satellite)
  • May of 1960 the Soviets shot down a U-2 plane and it's pilot
  • This U-2 incident heightened Cold War tensions
  • In 1958 the US lanched it's own satellite
USA vs USSR Fight! The Cold War: Crash Course World History #39

Turner Maggie Carrie James