USSR Began in 1922
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It was the largest country in area on the planet until its dissolution in 1991.
The USSR was the results of the 1917 Russian Revolution, whereby the Bolsheviks seized power.
This led to the Russian Civil War, pitting the Bolshevik Red Army against anti-communist forces across the former Russian Empire.
The Bolshevik victory allowed several Soviet republics to consolidate together.
The Union was formally established in December 1922 with the signing of the Treaty on the Creation of the USSR.
The Treaty brought together four founding republics:
• the Russian Soviet Federative Socialist Republic (RSFSR),
• the Ukrainian Soviet Socialist Republic,
• the Byelorussian Soviet Socialist Republic, and
• the Transcaucasian Soviet Federative Socialist Republic.
The state’s ideology was based on Marxism-Leninism and was therefore promoting their failed idea of a socialist society.
This doctrine promoted a “dictatorship of the proletariat,” whereby the working class, led by the Communist Party, held state power to suppress opposition and build a communist future.
The primary goal of the Treaty was to ensure the security and economic reconstruction of the republics.