Outer Mongolia (
Mongolian: [Gadagadu Monggol] in
Mongolian script, and [Gadaad Mongol] in
Mongolian Cyrillic; ) was a territory of the Manchu-led
Qing dynasty. Its area was roughly equivalent to that of the modern state of
Mongolia, which is sometimes erroneously called "Outer Mongolia" today, plus the Russian republic of
Tuva. There was and is some confusion about whether Outer Mongolia only consisted of the four
Khalkha aimags (Setsen Khan Aimag, Tüsheet Khan Aimag, Sain Noyon Khan Aimag and Zasagt Khan Aimag), or of Khalkha plus Oirat areas
Khovd and
Tannu Uriankhai.