LIST OF WARS: DETAILS
Battle deaths: 100,000 
Nation(s) involved and/or conflict territory [note]
Soviet Union, Poland
Polish leader Józef Pi³sudski envisioned a new federation (sometimes called Federation of Miêdzymorze) which would be composed of Poland, Lithuania and western Ukraine (centered at Kyiv), forming a Polish-led East European confederation as a counterweight to Russia. This new country was to have similar borders to the former Polish-Lithuanian Commonwealth from 16th—18th century.
At the same time Russia was transforming into the Soviet Union, through the Russian Revolutions and Russian Civil War that begun in 1917.
Lenin, leader of the new communist government of Russia, saw Poland as the bridge that would have to be crossed in order to help the communists fractions in Germany and Western Europe, according to the plan that would bring the worldwide domination of communism, as predicted by Karl Marx. When the German Revolution begun in 1918 Soviets decided it was time to start expanding their influence westwards.
SOURCES: FATALITY DATA
Notes on fatalities
 Battle deaths: Correlates of War, Inter-State War Data v4.0
NOTE ON NATION DATA
NOTE! Nation data for this war may be inconlusive or incomplete. In most cases it reflects which nations were involved with troops in this war, but in some it may instead reflect the contested territory.
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