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
Secret police as central to totalitarian regimes and "an indispensable device for the consolidation of power, neutralization of the opposition, and construction of a single-party state." In addition to these activities, secret police may also be responsible for tasks not related to suppressing internal dissent, such as gathering foreign intelligence, engaging in counterintelligence, organizing border security, and guarding government buildings and officials. Secret police forces sometimes endure even after the fall of a totalitarian regime. Arbitrary detention, abduction and forced disappearance, torture, and assassination are all tools wielded by secret police "to prevent, investigate, or punish (real or imagined) opposition." Because secret