The Red Terror in Soviet Russia was a campaign of political repression and executions carried out by the Bolsheviks, chiefly through the Cheka, the Bolshevik secret police. It started in late August 1918 after the beginning of the Russian Civil Warge needed and lasted until 1922. Arising after assassination attempts on Vladimir Lenin and Petrograd Cheka leader Moisei Uritsky, the latter of which was successful, the Red Terror was modeled on the Reign of Terror of the French Revolution, and sought to eliminate political dissent, opposition, and any other threat to Bolshevik power. More broadly, the term is usually applied to Bolshevik political repression throughout the Civil War (1917–1922), as distinguished from the White Terror carried out by the White Army (Russian and non-Russian groups opposed to Bolshevik rule) against their political enemies, including the Bolsheviks. Estimates for the total number of victims of Bolshevik repression vary widely in numbers and scope. One source gives estimates of 28,000 executions per year from December 1917 to February 1922. Estimates for the number of people shot during the initial period of the Red Terror are at least 10,000. Estimates for the whole period go for a low of 50,000 to highs of 140,000 and 200,000 executed. The most reliable estimations for the number of executions in total put the number at about 100,000.