Belgium felt he had collaborated with Germany during the war. The Belgian Congo gained independence in 1960 during the Congo Crisis; Ruanda-Urundi followed with its independence two years later. Belgium joined NATO as a founding member and formed the Benelux group of nations with the Netherlands and Luxembourg. Belgium became one of the six founding members of the European Coal and Steel Community in 1951 and of the European Atomic Energy Community and European Economic Community, established in 1957. The latter has now become the European Union, for which Belgium hosts major administrations and institutions, including the European Commission, the Council
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