Felix Edmundovich Dzerzhinsky, nicknamed "Iron Felix", was a Bolshevik revolutionary and politician. From 1917 until his death in 1926, he led the first two Soviet secret police organizations, the Cheka and the OGPU, establishing state security organs for the post-revolutionary Soviet regime. He was one of the architects of the Red Terror and de-Cossackization.

The All-Russian Extraordinary Commission, abbreviated as VChK, and commonly known as Cheka, was the first of a succession of Soviet secret-police organizations known for conducting the Red Terror. Established on December 5 1917 by the Sovnarkom, it came under the leadership of Bolshevik revolutionary Felix Dzerzhinsky. By late 1918, hundreds of Cheka committees had sprung up in the Russian SFSR at all levels.