- 
  
  Joseph Stalin brought soviet troops to czechoslovakia and demanded them to turn into a all-communist government.
- 
  
  The soviet union put a blockade on Berlin trying to force the Allies to give up either Berlin or their plans for a West German state. Pilots delivered almost 2.5 million tons of supplies.
- 
  
  The USSR successfully detonates its first atomic bomb.
- 
  
  Communism took over China.
- 
  
  North Atlantic Treaty Organization they pledged to consider an attack on any member as an attack on all and fored a standing army to defend Western Europe in the event of a Soviet invasion.
- 
  
  The Korean was was fought by South Korea and the United Nations vs North Korea and the Soviet Union.
- 
  
  The United States detonates the world's first thermonuclear weapon, the hydrogen bomb, on Eniwetok atoll in the Pacific.
- 
  
  A mutual defense treaty between 8 communist states of central and eastern Europe during the Cold war.
- 
  
  Hungary revolted against the communist government, And so the Soviet forces went to destroy the armed resistance.
- 
  
  The U.S. and Britain were going to finance the building of the Dam but then pulled their money out.
