Martakert (Armenian: Մարտակերտ, also Mardakert, Մարդակերտ) or Aghdara (Azerbaijani: Ağdərə ) is a town de facto in the breakaway Republic of Artsakh as the administrative capital of its Martakert Province, de jure in the Tartar District of Azerbaijan, in the disputed region of Nagorno-Karabakh. The town has an ethnic Armenian-majority population, and also had an Armenian majority in 1989. The town underwent heavy destruction by Azerbaijani forces while under their control during the First Nagorno-Karabakh War.