Allied intervention in the Russian Civil War Powers to withdraw from North Russia and Siberia in 1920, though Japanese forces occupied parts of Siberia until 1922 and the northern half of Sakhalin until 1925. In 1917, Russia was in a state of political strife, and public support for World War I and the Tsar was dwindling. The country was on the brink of revolution. The February Revolution changed the course of the war; under intense political pressure, the Tsar abdicated and the Russian Provisional Government was formed, led initially by Georgy Lvov and later by Alexander Kerensky. The Provisional Government pledged to continue fighting the Germans on
NKVD The NKVD of the RSFSR retained control of the "militsiya", and various other responsibilities. In 1934 the NKVD of the RSFSR was transformed into an all-union security force, the NKVD (which the Communist Party of the Soviet Union leaders soon came to call "the leading detachment of our party"), and the OGPU was incorporated into the NKVD as the Main Directorate for State Security (GUGB); the separate NKVD of the RSFSR was not resurrected until 1946 (as the MVD of the RSFSR). As a result, the NKVD also took over control of all detention facilities (including the forced labor camps,