Treaty of Kortrijk

[1] Belgium inherited the border upon its independence from the Netherlands in 1830.

Nowadays, these boundaries still stand, with some minor corrections, as the official boundaries between Belgium and France and between Luxembourg and France.

[3] The Treaty stipulates that if a debate on boundaries is needed, a committee of representatives from France and Belgium will discuss it, [1] but meetings have not been held since 1930.

[4] In 2021, the treaty was inadvertently violated when a disgruntled Belgian farmer moved one of the border markers seven feet (2.2 metres) into French territory, enlarging not only his land but the entire country of Belgium.

The mayors of the neighbouring French and Belgian villages took the encroachment good-naturedly,[5] and the farmer was issued with a letter ordering that the stone be moved back to its original position.