Russian conquest of Siberia
Military conquest during 1580–1778
The Russian conquest of Siberia took place between 1581 and 1778, when the Khanate of Sibir became a loose political structure of vassalages that were being undermined by the activities of Russian explorers. Although outnumbered, the Russians pressured the various family-based tribes into changing their loyalties and establishing distant forts from which they conducted raids. It is traditionally considered that Yermak Timofeyevich's campaign against the Siberian Khanate began in 1581.
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