The hetmanate was abolished in 1764; the Zaporozhian Sich was abolished in 1775, as Russia centralised control over its lands. As part of the Partitions of Poland in 1772, 1793 and 1795, the Ukrainian lands west of the Dnieper were divided between Russia and Austria. From 1737 to 1834, expansion into the northern Black Sea littoral and the eastern Danube valley was a cornerstone of Russian foreign policy.