Belgium–France border
The Belgium–France border or, more commonly, the Franco-Belgian border, separates France and Belgium and is 620 km (390 mi) long. Part of it is defined by the Leie river. The western end is at the North Sea (51°5′22″N 2°32′43″E near De Panne and Bray-Dunes). The eastern end is at the Belgium–France–Luxembourg tripoint (at 49°32′46″N 5°49′5″E near Athus and Mont-Saint-Martin). The straight distance between these points is 289 km (180 mi).
Since 1995 Belgium and France have been parts of the Schengen Area. This means there are no permanent border controls at this border, but there have been temporary controls.
The Belgian side of the border is shared by, from north to south, the provinces of West Flanders (Flemish Region) and Hainaut, Namur and Luxembourg (Walloon Region).
The French side of the border is shared by, from north to south, the departments of Nord and Aisne (region of Hauts-de-France) and Ardennes, Meuse and Meurthe-et-Moselle (region of Grand Est).