Belgium and the Netherlands peacefully re-arranged their borders this week to resolve a problem dating from the 1960s when a change to the course of the River Meuse left two small parcels of Belgian land isolated on the Dutch side of the river, while a fragment of the Netherlands was on the Belgian side.
The stranded Belgian territory became notorious for unregulated drug and sex activity, because the Dutch police had no jurisdiction and the Belgian officials could only reach it by boat.
In 2012 matters were brought to a head (or more accurately a missing head) when a decapitated body was found on the land. The Belgian investigators required special permission to travel to the area and the administrative hurdles were particularly bothersome.
On Monday this week an agreement was finally signed that realigns the national border with the river course. The land parcels Presqu’île de L’llal and Presqu’île d’Eijsden (totalling 25 hectares) were transferred to the Netherlands , while Belgium acquired Presqu’île Petit-Gravier (5 hectares).
Thus Belgium lost around 20 hectares.
Here’s an explanatory video (in Dutch but with English subtitles)