1917-1924
During World War I, representatives of the Romanian speakers beyond the Dniester (who numbered 173,982 in the 1897 census) participated in the Bessarabian national movement in 1917/1918, asking for the incorporation of their territory in Greater Romania. Nevertheless, Romania ignored their request, as it would have required a large-scale military intervention.
At the end of World War I in 1918, the Directory of Ukraine proclaimed the sovereignty of the Ukrainian People's Republic over the left bank of the Dniester. After the Russian Civil War in 1922, the Ukrainian SSR was created.
Read more about this topic: History Of Transnistria