Economy of Belgium increased unemployment, stemming from the worldwide banking crisis. For 50 years through World War II, French-speaking Wallonia was a technically advanced, industrial region, with its industry concentrated along the sillon industriel, while Dutch-speaking Flanders was predominantly agricultural with some industry, mainly processing agricultural products and textiles. This disparity began to fade during the interwar period. When Belgium emerged from World War II with its industrial infrastructure relatively undamaged thanks to the Galopin doctrine, the stage was set for a period of rapid development, particularly in Flanders. The postwar boom years, enhanced by the establishment of the European Union and NATO
Swedish-speaking population of Finland becomes monolingual. In bilingual municipalities, all civil servants must have satisfactory language skill in either Finnish or Swedish (in addition to native-level skill in the other language). Both languages can be used in all communications with the civil servants in such a town. Public signs (such as street and traffic signs, as illustrated) are in both languages in bilingual towns and municipalities the name in majority language being on the top. The Swedish-speaking areas in Finnish Mainland do not have fixed territorial protection, unlike the languages of several national minorities in Central Europe such as German in Belgium and North