Luxembourg an independent state under the personal possession of William I of the Netherlands with a Prussian garrison to guard the city against another invasion from France. In 1839, following the turmoil of the Belgian Revolution, the purely Oil-speaking part of Luxembourg was ceded to Belgium and the Luxembourgish-speaking part (except the Arelerland, the area around Arlon) became what is the present state of Luxembourg. Luxembourg is a founding member of the European Union, OECD, United Nations, NATO, and Benelux. The city of Luxembourg, which is the country's capital and largest city, is the seat of several institutions and agencies of
Belgium–Netherlands border Between Belgian and Dutch Limburg, the border is mostly formed by the Meuse (Maas) river. The other parts of the border is mostly on land. The city of Baarle-Hertog forms a Belgian exclave in the Netherlands. The border is complicated there, with Dutch exclaves inside it. The eastern end point is the tripoint (together with Germany) at Vaalserberg. During the First World War, an electric fence was installed along the border by the German military, called the Wire of Death. Two border changes have occurred in recent history with regard to the Belgium–Netherlands border. Belgium–Netherlands border The Belgium–Netherlands border separates