彼得格勒苏维埃
After Tsar Nicholas II abdicated the throne, the resulting February Revolution led to the establishment of the Provisional Government and its counterpart, the Petrograd Soviet. The Provisional Government was composed of former State Duma representatives with approval from the Petrograd Soviet, whereas the Petrograd Soviet was made up of socialist leaders elected by a proletariat constituency. With the Russian government moving from an autocracy to this system of "dual power" with the Provisional Government and Petrograd Soviet constantly vying for power, there was much confusion on how both could coexist and govern effectively.