This Mongolian army took the Mongolian part of Kyakhta from Chinese forces on March 18, 1921, and on July 6 Russian and Mongolian troops arrived in Khüree.
Rezultat ruske državljanske vojne je bil, da je v oktobru 1920, general podpolkovnik baron Ungern pripeljal svoje belogardejske čete v Mongolijo in v začetku februarja 1921 premagal kitajske sile v Niislel Khüree (danes Ulan Bator).