Casualties
The results of the civil war were momentous. Soviet demographer Boris Urlanis estimated total number of men killed in action in Civil War and Polish-Soviet war as 300,000 (125,000 in the Red Army, 175,500 White armies and Poles) and total number of military personnel died from disease (on both sides) as 450,000.
During the Red Terror, the Cheka carried out an estimated 250,000 summary executions of "enemies of the people".
Some 300,000–500,000 Cossacks were killed or deported during Decossackization, out of a population of around three million. An estimated 100,000 Jews were killed in Ukraine, mostly by the White Army. Punitive organs of the All Great Don Cossack Host sentenced 25,000 people to death between May 1918 and January 1919. Kolchak's government shot 25,000 people in Ekaterinburg province alone.
At the end of the Civil War, the Russian SFSR was exhausted and near ruin. The droughts of 1920 and 1921, as well as the 1921 famine, worsened the disaster still further. Disease had reached pandemic proportions, with 3,000,000 dying of typhus alone in 1920. Millions more were also killed by widespread starvation, wholesale massacres by both sides, and pogroms against Jews in Ukraine and southern Russia. By 1922, there were at least 7,000,000 street children in Russia as a result of nearly 10 years of devastation from the Great War and the civil war.
Another one to two million people, known as the White émigrés, fled Russia—many with General Wrangel, some through the Far East, others west into the newly independent Baltic countries. These émigrés included a large part of the educated and skilled population of Russia.
The Russian economy was devastated by the war, with factories and bridges destroyed, cattle and raw materials pillaged, mines flooded, and machines damaged. The industrial production value descended to one seventh of the value of 1913, and agriculture to one third. According to Pravda, "The workers of the towns and some of the villages choke in the throes of hunger. The railways barely crawl. The houses are crumbling. The towns are full of refuse. Epidemics spread and death strikes—industry is ruined."
It is estimated that the total output of mines and factories in 1921 had fallen to 20% of the pre–World War level, and many crucial items experienced an even more drastic decline. For example, cotton production fell to 5%, and iron to 2% of pre-war levels.
War Communism saved the Soviet government during the Civil War, but much of the Russian economy had ground to a standstill. The peasants responded to requisitions by refusing to till the land. By 1921, cultivated land had shrunk to 62% of the pre-war area, and the harvest yield was only about 37% of normal. The number of horses declined from 35 million in 1916 to 24 million in 1920, and cattle from 58 to 37 million. The exchange rate with the U.S. dollar declined from two rubles in 1914 to 1,200 in 1920.
With the end of the war, the Communist Party no longer faced an acute military threat to its existence and power. However, the perceived threat of another intervention, combined with the failure of socialist revolutions in other countries, most notably the German Revolution, contributed to the continued militarization of Soviet society. Although Russia experienced extremely rapid economic growth in the 1930s, the combined effect of World War I and the Civil War left a lasting scar in Russian society, and had permanent effects on the development of the Soviet Union.
British historian Orlando Figes has contended that the root of the Whites' defeat was their failure to break with the ugly past of the oppressive Tsarist régime.
Read more about this topic: Russian Civil War, Aftermath