The outcome of the Russian Revolution in 1917 was the successful establishment of a Bolshevik-led government, which aimed to create a socialist state based on Marxist principles. The overthrow of the provisional government resulted in the withdrawal of Russia from World War I through the Treaty of Brest-Litovsk. Following the revolution, a civil war ensued between the Bolshevik Red Army and the White Army, leading to the consolidation of power by the Bolsheviks. Ultimately, in 1922, the USSR was formally established, marking the first time a socialist state was created on such a scale and influencing communist movements around the world.