Polish–Soviet War

The Polish–Soviet War (February 1919 – March 1921) was an armed conflict that pitted Soviet Russia and Soviet Ukraine against the Second Polish Republic and the Ukrainian People's Republic over the control of an area equivalent to today's Ukraine and parts of modern-day Belarus. Ultimately the Soviets, following on from their Westward Offensive of 1918–19, hoped to fully occupy Poland, and at some point in the war this appeared possible.