Original: The Nagorno-Karabakh Republic ( NKR ) ( , ) or Artsakh Republic is a de facto independent republic located in the Nagorno-Karabakh region ( or Artsakh region ) of the South Caucasus , about 270 kilometers ( 170 miles ) west of the Azerbaijani capital of Baku and very close to the border with Armenia .
Simplified: The Nagorno-Karabakh Republic ( NKR ) ( ) or Artsakh Republic is a de facto independent republic located in the Nagorno-Karabakh region of the South Caucasus .