1921

Mongolian Revolution with the assistance of the Soviet Red Army

• Kakhet–Khevsureti Rebellion, Georgians against Russia

• Svanetian Uprising, Georgians against Russia

• Georgia was attacked and occupied by the Red Army

• Armenia, February Uprising against Soviets

• The First Armenian Republic, along with the Republic of Mountainous Armenia repelled the Soviet invasion until July

• Ukraine is annexed to the Soviet Union

• Russians attack and occupy the Dagestan and forcefully join in to the Soviet state.

• Soviet power came to the Itelmens. The new ideology attacked animism more fiercely

• The civil war ends with Lenin's victory (millions have died of starvation, the population of Petrograd has dropped from 2.5 million in 1917 to 0.6 in 1920)

• Peasant riots and worker strikes spread in the Soviet Union

• Soviet power was wholly established in Bukhara Khanate

• 1921-1922 Famine-genocide in Tatarstan

• 1921-1922 East Karelian Uprising and Soviet–Finnish conflict

• 1920-1921 Mass deportations, 45 000 Cossacks, Terek Cossacks and Semirechye Cossacks population from North Caucasus and Semirechye to Ukrainian SSR, northern Russian SFSR, Extreme North, concentration camps

• 1920-1921 The Bats were able to repel the White Guard but not the attack of the Bolshevist 11th army. Soviet power was established in Tushetia and the region was annexed to the Soviet Union as a part of the Trans-Caucasus Federation.

• 1920-1930 Godoberis people had been openly and violently suppressed. Later, more subtle and indirect means were used, but to equal effect. Gradually Communist ideology came to predominate and the resistance to Soviet rule subsided.

• 1920-1940 Ukraine, Bykivnia Graves. During the Stalinist period in the Soviet Union, it was one of the unmarked mass grave sites where the NKVD, the Soviet secret police, disposed of thousands of executed "enemies of the Soviet state" The number of dead bodies buried there is estimated 225 000

• 1920-1921 Tambov Rebellion

• 1919-1921 Andis people offensive of Soviet troops

• 1919-1921 Polish–Soviet War

• 1918-1921 Red Terror: Lenin purges Communist Party, socializes economy; 5 million die of famine

• 1918-1922 Heimosodat - conflicts in territories inhabited by Baltic Finnic peoples, often in Russia or in borders of Russia.

• 1917-1922 Russian Civil War

• 1917-1921 Ukrainian–Soviet War, Ukrainian War of Independence

• 1800-2001 Russia annexing Kingdom of Kartli-Kakheti (Eastern Georgia) and deposing the Bagratids

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