Mongolian People's Republic

State · 1926–1991 CE · at its largest around 1946 CE

A socialist state in Outer Mongolia, proclaimed in 1924 and closely aligned with the Soviet Union, effectively as a satellite. One-party Communist rule ended with the democratic revolution of 1990.

On its lands while it lasted

• Battles of Khalkhin Gol (1939 CE): Soviet and Mongolian forces under Georgy Zhukov defeated the Japanese Kwantung Army on the Mongolia–Manchukuo border.

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