ノモンハン事件
In the 1939 Battles of Khalkhin Gol (or Nomonhan) heavily armed Red Army forces under Georgy Zhukov assisted by Mongolian troops under Khorloogiin Choibalsan decisively defeated Imperial Japanese Army forces under Michitarō Komatsubara. During a meeting with Joseph Stalin in Moscow in early 1944, Choibalsan requested military assistance to the MPRA for border protection. Units of Mongolian People's Army were also supported and allied with the Soviet Red Army on the western flank of the Soviet invasion of Manchuria in 1945.