11. The Polish-Soviet War (1919-1921)
The Polish-Soviet War erupted as two emerging states vied to shape the new European order after World War I. Poland’s unexpected victory halted the westward advance of Bolshevik forces, preventing the spread of communism into Western Europe. The outcome not only secured Polish independence but also influenced interwar alliances and the drawing of national boundaries throughout the region. This overlooked conflict set the tone for Eastern European politics in the tumultuous decades that followed.
