唐努乌梁海
In 1918 the part Buryat Mongol Transbaikalian Cossack Ataman Grigory Semyonov declared a "Great Mongol State" and had designs to unify the Oirat Mongol lands, portions of Xinjiang, Transbaikal, Inner Mongolia, Outer Mongolia, Tannu Uriankhai, Khovd, Hu-lun-pei-erh and Tibet into one.