The Khalkha are one of the major historical subgroupings of the Mongols. Historically ruled by leaders descended from Chinggis Khan, the Khalkha inhabited a territory roughly the same as the country called Mongolia today. Other important Mongol groups after the fall of the Mongol Empire include the Chahars, who lived in what is today the Inner Mongolia Autonomous Region in China, the Oirat or Dzungars, who lived in Central Asia, and the Khoshut, who lived in the northern Tibetan Plateau.