History of Belgium from Korea in 1955. On September 5, 1944, the Benelux Customs Union was created. It entered into force in 1948, and ceased to exist on 1 November 1960, when it was replaced by the Benelux Economic Union after a treaty signed in The Hague on February 3, 1958. The Benelux Parliament was created in 1955. The Treaty of Brussels, signed on 17 March 1948 by Belgium, the Netherlands, Luxembourg, France, and the United Kingdom, is considered the precursor to the NATO agreement, which Belgium became an official member of on April 4, 1949. The headquarters of NATO are located in
Netherlands They were probably the most commonly used names, besides Flanders, another pars pro toto for the Low Countries, especially in Romance language speaking Europe. The Eighty Years' War (1568–1648) divided the Low Countries into an independent northern Dutch Republic (or Latinised "Belgica Foederata", "Federated Netherlands", the precursor state of the Netherlands) and a Spanish controlled Southern Netherlands (Latinised "Belgica Regia", "Royal Netherlands", the precursor state of Belgium). The Low Countries today is a designation that includes the countries the Netherlands, Belgium and Luxembourg, although in most Romance languages, the term "Low Countries" is used as the name for the Netherlands