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 gained independence in 1830 as Belgium (recognised by the Northern Netherlands in 1839 as the Kingdom of the Netherlands was created by decree), while the personal union between Luxembourg and the Netherlands was severed in 1890, when William III died with no surviving male heirs. Ascendancy laws prevented his daughter Queen Wilhelmina from becoming the next Grand Duchess. The Belgian Revolution at home and the Java War in the Dutch East Indies brought the Netherlands to the brink of bankruptcy. However, the Cultivation System was introduced in 1830; in the Dutch East Indies, 20% of village land had to be