Individual #North_Korea__Democratic_People's_Republic_of_Korea  a communist country in the northern half of the Korean Peninsula; established in 1948
  instance of:  #Asian_country
  part of:  #Korea
  part:  #Yalu_River  a battle in the Korean War (November 1950); when UN troops advanced north to the Yalu River 200,000 Chinese troops crossed the river and drove them back
  part:  #Pyongyang__capital_of_North_Korea  capital of North Korea and an industrial center; "Pyongyang is Korea's oldest city but little of its history has been preserved"
  part:  #Yalu__Yalu_River  river in eastern Asia; rises in North Korea and flows southwest to Korea Bay (forming part of the border between North Korea and China)

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