Poland–Russia relations
Immediately after regaining independence in 1918, Poland was faced with a war with the new Bolshevik Russia, with the Polish-Soviet War eventually ending up with a Polish victory at Warsaw, spoiling Lenin's plans of sending his Red Army west to spread the communist revolution
Czechoslovakia–Poland relations Czechoslovakia gained independence in the aftermath of World War I, as Austria-Hungary fell apart, just as Poland regained independence as the Second Polish Republic after 123 years of partitions. Both emerging countries shared a long border, and soon became enveloped in a border conflict. Although it never developed into an open war, this conflict led to uneasy relations between both states in the interwar period.
Immediately after regaining independence in 1918, Poland was faced with a war with the new Bolshevik Russia, with the Polish-Soviet War eventually ending up with a Polish victory at Warsaw, spoiling Lenin's plans of sending his Red Army west to spread the communist revolution
Czechoslovakia–Poland relations
Czechoslovakia gained independence in the aftermath of World War I, as Austria-Hungary fell apart, just as Poland regained independence as the Second Polish Republic after 123 years of partitions. Both emerging countries shared a long border, and soon became enveloped in a border conflict. Although it never developed into an open war, this conflict led to uneasy relations between both states in the interwar period.