Mongolian People's Republic - Mongolian People's Army

The Mongolian People's Army (Mongolian: Монголын Ардын Арми or Монгол Ардын Хувьсгалт Цэрэг) or Mongolian People's Revolutionary Army was established on 18 March 1921 as a secondary army under Soviet Red Army command during the 1920s and during World War II.

During the Pei-ta-shan Incident, elite Qinghai Chinese Muslim cavalry were sent by the Chinese Kuomintang to destroy the Mongols and the Russians in 1947.

The military of Mongolia's purpose was national defense, protection of local communist establishments, and collaboration with Soviet forces in future military actions against exterior enemies, up until the 1990 Democratic Revolution in Mongolia.

The Red Mongol Army received sixty percent of the government budget in early years and it expanded from 2,560 men in 1923 to 4,000 in 1924 and to 7,000 in 1927. The native armed forces stayed linked to Soviet Red Army intelligence groups and NKVD. Mongolian secret police, and Buryat Mongol Comintern agents acted as administrators and represented the real power in the country albeit under direct Soviet guidance.