Cheka
The All-Russian Extraordinary Commission, abbreviated as VChK (Russian: ВЧК, IPA: [vɛ tɕe ˈka]), and commonly known as the Cheka (Russian: ЧК, IPA: [tɕɪˈka]), was the first Soviet secret police organization. It was established on 20 December [O.S. 7 December] 1917 by the Council of People's Commissars of the Russian SFSR, and was led by Felix Dzerzhinsky.