The term State reform in the Belgian context indicates a process towards finding constitutional and legal solutions for the problems and tensions among the different segments of the Belgian population, mostly Dutch-speakers of Flanders and French-speakers of Wallonia. In general, Belgium evolved from a unitary state to a federal state with communities, regions and language areas.
The tensions between the communities of Belgium arose around a struggle between the two main language communities of the country, Dutch and French. This resulted in extensive language legislation, but which did not solve the conflicts between Flanders and Wallonia, the two main regions of the country. Due to the then widespread discrimination against Flemings, symbolized by the bad treatment of Flemish soldiers during World War I, the Flemish organized themselves against the mostly French-speaking government. After World War II, the differences between Dutch-speaking Belgians and French-speaking Belgians became clear in a number of conflicts.
In 1950, a referendum on the position of King Leopold III was held: the Royal Question. The question asked was whether he should be allowed to return to the throne, in view of his position during World War II. Nationally, 58% of voters supported the restoration of Leopold III. However, there were strong regional differences. Of those who voted, 72% percent of the people in Flanders were in favor of his return, while a majority of voters in Wallonia and Brussels opposed his return. With the support of greater than half of Belgians, Leopold III returned to the throne. Following his restoration, anger among Leopold's opponents in Wallonia and Brussels grew into rioting that the government had struggled to contain. Pressure from the government forced Leopold III to abdicate.