the cheka was created on december 20, 1917, after a decree issued by vladimir lenin, and was subsequently led by aristocrat-turned-communist felix dzerzhinsky
in the soviet union, the state secret-police organization (1917–22), succeeded by the gpu
"the cheka was created on december 20, 1917, after a decree issued by vladimir lenin, and was subsequently led by aristocrat-turned-communist felix dzerzhinsky" What is the definition of "cheka"?