Polish troops enter Kyiv in May 1920 during the Polish–Soviet War
Poland defeated Western Ukraine in the Polish-Ukrainian War, but failed against the Bolsheviks in an offensive against Kyiv. According to the Peace of Riga, western Ukraine was incorporated into Poland, which in turn recognized the Ukrainian Soviet Socialist Republic in March 1919. With establishment of the Soviet power, Ukraine lost half of its territory, while Moldavian autonomy was established on the left bank of the Dniester River. Ukraine became a founding member of the Union of Soviet Socialist Republics in December 1922.
Western Ukraine, Carpathian Ruthenia and Bukovina:
The war in Ukraine continued for another two years; by 1921, however, most of Ukraine had been taken over by the Soviet Union, while Galicia and Volhynia (mostly today’s West Ukraine) were incorporated into the Second Polish Republic. Modern-day Bukovina was annexed by Romania and Carpathian Ruthenia was admitted to the Czechoslovak Republic as an autonomy.
Hutsuls living in Verkhovyna, c. 1930
A powerful underground Ukrainian nationalist movement arose in eastern Poland in the 1920s and 1930s, which was formed by Ukrainian veterans of the Ukrainian-Soviet war (including Yevhen Konovalets, Andriy Melnyk, and Yuriy Tyutyunyk) and was transformed into the Ukrainian Military Organization and later the Organisation of Ukrainian Nationalists (OUN). The movement attracted a militant following among students. Hostilities between Polish state authorities and the popular movement led to a substantial number of fatalities, and the autonomy which had been promised was never implemented. The pre-war Polish government also exercised anti-Ukrainian sentiment; it restricted rights of people who declared Ukrainian nationality, belonged to the Eastern Orthodox Church and inhabited the Eastern Borderlands. The Ukrainian language was restricted in every field possible, especially in governmental institutions, and the term “Ruthenian” was enforced in an attempt to ban the use of the term “Ukrainian”. Despite this, a number of Ukrainian parties, the Ukrainian Catholic Church, an active press, and a business sector existed in Poland. Economic conditions improved in the 1920s, but the region suffered from the Great Depression in the early 1930s.
Inter-war Soviet Ukraine
The Russian Civil War devastated the whole Russian Empire including Ukraine. It left over 1.5 million people dead and hundreds of thousands homeless in the former Russian Empire territory. Soviet Ukraine also faced the Russian famine of 1921 (primarily affecting the Russian Volga–Ural region). During the 1920s, under the Ukrainization policy pursued by the national Communist leadership of Mykola Skrypnyk, Soviet leadership encouraged a national renaissance in the Ukrainian culture and language. Ukrainization was part of the Soviet-wide policy of Korenization (literally indigenisation).[81] The Bolsheviks were also committed to universal health care, education and social-security benefits, as well as the right to work and housing.Women’s rights were greatly increased through new laws. Most of these policies were sharply reversed by the early 1930s after Joseph Stalin became the de facto communist party leader.