After the overthrow of the Provisional Government on 7th November, 1917, the All-Russian Congress of Soviets met and handed over power to the Soviet Council of People's Commissars. Vladimir Lenin was elected chairman and other appointments included leading Bolsheviks such as Leon Trotsky (Foreign Affairs) Alexei Rykov (Internal Affairs), Anatoli Lunacharsky (Education) and Joseph Stalin (Nationalities).
Alexander Kerensky, who had managed to escape arrest, assembled loyal troops from the Northern Front. Led by General Krasnov, the Cossacks were defeated by Bolshevik forces at Pulkova. By December, 1917, central Russia and Siberia was under the control of Lenin's government.
General Lavr Kornilov now organized a Volunteer Army and in January 1918 his forces numbered 3,000 men. Over the next few months other groups who opposed the Bolshevik government joined the struggle. Eventually these soldiers became known as the Whites.