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
German invasion of Luxembourg directed Agriculture, Viticulture, Commerce, and Industry. In the days after the invasion Luxembourgian officers walked about the capital freely, though the regular soldiers were mostly confined to their barracks. Colonel Speller was briefly incarcerated by the Gestapo, though he was later released under close supervision. German invasion of Luxembourg The German invasion of Luxembourg was part of Case Yellow (), the German invasion of the Low Countries (Belgium, Luxembourg and the Netherlands) and France during World War II. The battle began on 10 May 1940 and lasted just one day. Facing only light resistance, German troops quickly occupied Luxembourg. The