The Holocaust in Belgium the country before World War I. The interwar period saw substantial Jewish immigration to Belgium. By 1930, the population rose to 50,000, and by 1940 it was between 70,000–75,000. Most of the new Jewish immigrants came from Eastern Europe and Nazi Germany, escaping anti-Semitism and poverty in their native countries. The Roma population of Belgium at the same time was approximately 530. Few of the Jewish migrants claimed Belgian citizenship, and many did not speak French or Dutch. Jewish communities developed in Charleroi, Liège, Brussels and, above all, Antwerp, where more than half of the Jews in Belgium lived. The
Albert I of Belgium prepared himself strenuously for the task of kingship. In his youth, Albert was seriously concerned with the situation of the working classes in Belgium, and personally travelled around working class districts incognito, to observe the living conditions of the people. Shortly before his accession to the throne in 1909, Albert undertook an extensive tour of the Belgian Congo, which had been annexed by Belgium in 1908 (after having been previously owned by King Leopold II of Belgium as his personal property), finding the country in poor condition. Upon his return to Belgium, he recommended reforms to protect the native population