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 with a significant Swedish-speaking population such as Helsinki and Turku, most of them are fluent in both Swedish and Finnish. Although in some municipalities Swedish is the only official language, Finnish is the dominant language in most towns and at most employers in Finland. In areas with a Finnish-speaking majority, Finnish is most often used when interacting with strangers and known Finnish speakers. However, 50% of all Swedish speakers live in areas in which Swedish is the majority language and in which they can use Swedish in all or most contexts (see demographics below). Of the Swedish-speaking population of Finland: