- 
  
  state of political and military tension after World War II between powers in the Western Bloc (the United States,
 - 
  
  established that the United States would provide political, military and economic assistance to all democratic nations under threat from external or internal authoritarian forces.
 - 
  
  On June 24, 1948, the Soviet Union blocked all road and rail travel to and from West Berlin
 - 
  
  The United States and 11 other nations establish the North Atlantic Treaty Organization (NATO), a mutual defense pact aimed at containing possible Soviet aggression against Western Europe. NATO stood as the main U.S.-led military alliance against the Soviet Union throughout the duration of the Cold War
 - 
  
  Armed forces from communist North Korea smash into South Korea, setting off the Korean War
 - 
  
  when the armistice was signed.
 - 
  
  
 - 
  
  the sovient sent spuntik the first human made space satelite to orbit the earth
 - 
  
  the east german gov began to build a wall seperating west berlin from east berlin
 - 
  
  The Soviets have secretly been installing military bases, including nuclear weapons, on Cuba
 - 
  
  claims that North Vietnamese naval vessels had fired on two American destroyers in the Gulf of Tonkin
 - 
  
  Battle of Ia Drang, the first major engagement between US Troops and regular Vietnamese forces.
 - 
  
  successfully overthrows Sukarno as president of Indonesia.
 - 
  
  suspends bombings over North Vietnam and announces he is not running for reelection
 - 
  
  becomes President of the United States.
 - 
  
  , , ratified by the United Kingdom, the Soviet Union and the United States, among others, enters into force.
 - 
  
  forces enter Laos to briefly cut the Ho Chi Minh trail.
 - 
  
  goes to the offensive in South Vietnam, only to be repulsed by the South Vietnamese regime with major American air support.
 - 
  
  Accords end American involvement in the Vietnam War. Congress cuts off funds for the continued bombing of Indochina
 - 
  
  formally ends after France leaves the organization