- 
  
  North Korea invades South Korea, US government takes note
 - 
  
  US president Harry Truman orders air and naval support for South Korea
 - 
  
  North Korean forces capture the South Korean capital city of Seoul.
 - 
  
  General Douglas MacArthur's army enters Korea
 - 
  
  UN forces, primarily composed of American troops, capture the North Korean capital of Pyongyang on their push north
 - 
  
  The Chinese New Year's Offensive overwhelmed UN forces, allowing the PVA and KPA to conquer Seoul for the second time
 - 
  
  General MacArthur is fired by President Truman, resulting in public controversy.
 - 
  
  Armistice negotiations begin at Kaesong. The war was entering its stalemate phase, with neither side gaining or losing much territory, so Americans sought a quick end to the war.
 - 
  
  American bomber forces attack North Korean hydroelectric plants in an attempt to cripple their infrastructure. http://www.koreanwaronline.com/history/NoSweat/Pages/Dam.htm
 - 
  
  American and Korean forces clash in an attempt to capture a hill known as "old baldy" and a neighboring hill.
 - 
  
  American and South Korean forces failed to capture a Chinese position at Triangle Hill, resulting in the bloodiest battle of 1952.
 - 
  
  After nearly two years of negotiations, diplomats from the United States, North Korea, and China reach agreement on an armistice to end the "UN peace action" in Korea without a formal peace treaty. Both sides claim victory; Korea remains divided at the 38th parallel. Document: http://www.archives.gov/historical-docs/todays-doc/?dod-date=727