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
Coat of arms of Luxembourg Coat of arms of Luxembourg The coat of arms of Luxembourg has its origins in the Middle Ages and was derived from the arms of the Duchy of Limburg, in modern-day Belgium and the Netherlands. In heraldic language, the arms are described as: "Barry of ten Argent and Azure, a Lion rampant queue forchée Gules crowned, armed and langued Or." There are greater, middle and lesser versions of the coat of arms of Luxembourg. The greater coat of arms has two reguardant and crowned lions as supporters, the Dynastic Order (the Order of the Oak Crown) and all surrounded by