The Ukrainian–Soviet War is the term commonly used in post-Soviet Ukraine for the events taking place between 1917 and 1921, nowadays regarded essentially as a war between the Ukrainian People's Republic and the Bolsheviks (Russian SFSR and Ukrainian SSR). The war ensued soon after the October Revolution when Lenin dispatched Antonov's expeditionary group to Ukraine and Southern Russia.
Soviet historiography viewed the Bolshevik victory as the liberation of Ukraine from occupation by the armies of Western and Central Europe (including that of Poland). Conversely, modern Ukrainian historians consider it a failed war of independence by the Ukrainian People's Republic against the Bolsheviks.