Ukraine history articles:
Khmelnitsky's need for help against Poles led to an agreement with Muscovite tsar in 1654, which was considered an act of submission by Muscovites. Poland-Lithuania was forced to recognize Muscovite suzerainty over Kiev and the lands east of Dnepr River, and Cossack hetmanate was gradually absorbed into Russian Empire.
In the late 18th-century after partitions of Poland, Russian Empire obtained Ukrainian lands west of Dnepr River, except for Galicia, which went to Austria.
Ukrainian nationalist movement developed in the 19th century, but in Russian-held Ukraine the movement faced political repression and restrictions against Ukrainian language. In Austria-Hungary conditions were more favorable, and, by the time of World War I, Ukrainians of Galicia set up a network of viable cultural, political, and religious institutions.
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