 Polish assistance and involvement were increasingly becoming a necessary component of the balance of power in the eastern reaches of the Lithuanian domain.Under Vasili III Moscow fought a war with Lithuania and Poland between 1512 and 1522, during which in 1514 the Russians took Smolensk.That same year the Polish-Lithuanian rescue expedition fought the victorious Battle of Orsha under Hetman Konstanty Ostrogski and stopped the Duchy of Moscow's further advances.