Belgium–Luxembourg Economic Union entrusted to a Board of Directors consisting of two Belgian members (including the chairman) and one Luxembourgish member, and the Higher Council of the Union (with three Belgian and two Luxembourgish members). Belgium–Luxembourg Economic Union The Belgium–Luxembourg Economic Union (, , ), abbreviated to BLEU or UEBL, is an economic union between Belgium and Luxembourg, two countries in the Benelux Union. BLEU was created by a treaty, signed on 25 July 1921, despite a referendum against such a proposal, between Belgium and Luxembourg, and came into effect upon ratification by the Luxembourg Chamber of Deputies on 22 December 1922. Under
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