April Theses
Already in April, he entered the Moscow Committee of the Bolsheviks and soon thereafter was elected to the Executive Committee of the Moscow Soviet. Dzerzhinsky endorsed Lenin's "April Theses"—demanding uncompromising opposition to the Russian Provisional Government, the transfer of all political authority to the Soviets, and the immediate withdrawal of Russia from the war. Dzerzhinsky's brother Stanisław was murdered on the Dzerzhinsky estate by deserting Russian soldiers that same year.