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
Supreme Administration of the Northern Region part of the Supreme Administration of the Northern Region. On 28 September 1918, the Supreme Administration of the Northern Region became the Provisional Government of the Northern Region. During its height of control, the Supreme Administration of the Northern Region controlled the overwhelming majority of the Arkhangelsk Governorate (using the 1917 governorate borders of the Russian Republic), about half of the Olonets Governorate (using the 1917 governorate borders of the Russian Republic), and a tiny part of the Vologda Governorate (using the 1917 governorate borders of the Russian Republic). Supreme Administration of the Northern Region The Supreme Administration of the