ELI5: Explain Like I'm 5

Polish–Czechoslovak border conflicts

The Polish-Czechoslovak border conflicts were a series of disputes between Poland and Czechoslovakia during the 1920s and 1930s. The two countries had a long historical relationship and both wanted control of certain parts of the border between them. The disputes arose from arguments over which country had the right to control certain parts of land and resources. These disputes often led to small battles and confrontations between the two countries, with both sides usually claiming victory in the end. The conflict eventually ended with a negotiated agreement in 1938 that established the current boundary between Poland and Czechoslovakia.