The Polish-Ukrainian relations during the formation ot the Polish eastern border in the years between 1918-1922

Abstract

Having taken the advantage of the new geopolitical situation in the Central-Eastern Europe after the First World War, Poles and Ukrainians began to establish their nation-states. From November 1, 1918 Poles and Ukrainians waged war against each other on disputed
territories: East Galicia, Volhynia and Podolia. The hostilities lasted till September 1, 1919 when the armistice was signed and Ukrainians were dislodged behind the Zbruch River. From the end of December 1919 Polish-Ukrainian political-military negotiations were held in Warsaw. They resulted in signing the Polish-Ukrainian military alliance. Thereupon on April 25, 1920 the Polish and Ukrainian Armies launched an offensive against the Red Army near Kiev. This alliance was denounced by the Polish side in November 1920.