National minorities in the Polish-Czechoslovak relations (1948-1989)

The article describes the role of the problem of national minorities (Poles in Zaolzie, Czechs mainly in Kłodzko, and Slovaks in Polish parts of Spiš and Orava) in Polish-Czechoslovakian relations during the communist era. In the light of the author’s research, the nationalist heritage of border disputes from the first half of the 20th century influenced relations between the two countries also in later years, although the minority problem in their mutual relations was marginal and officially did not exist for both sides.