Belgium–Luxembourg Economic Union 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 the terms of the treaty, the economic frontier was lifted and the Belgian franc and Luxembourg franc were set at a fixed parity (though revised in 1935 and 1944) establishing a monetary
Communes of Luxembourg Luxembourg was annexed into the French département of Forêts in 1795. Despite ownership passing to the Netherlands, this system was maintained until it was introduced upon independence in 1843. The province of Luxembourg, which now constitutes part of Belgium, was part of Luxembourg prior to 1839 when it possessed a low degree of sovereignty. Due to Luxembourg's incorporation into the main country by its occupying powers, the modern municipal system in Luxembourg is less than two centuries old. Luxembourg has three official languages: French, German, and the national language Luxembourgish. Some government websites also offer English versions The communes have