Belgium, officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, as well as those of several other major international organizations such as NATO. Belgium covers an area of 30,528 square kilometers (11,787 sq mi), and it has a population of about 11 million people. Straddling the cultural boundary between Germanic and Latin Europe, Belgium is home to two main linguistic groups, the Dutch-speakers, mostly Flemish, and the French-speakers, mostly Walloons, plus a small group of German-speakers. Belgium's two largest regions are the Dutch-speaking region of Flanders in the north and the French-speaking southern region of Wallonia. The Brussels-Capital Region, officially bilingual, is a mostly French-speaking enclave within the Flemish Region. A small German-speaking Community exists in eastern Wallonia. Belgium's linguistic diversity and related political and cultural conflicts are reflected in the political history and a complex system of government. Belgium's strongly globalized economy and its transportation infrastructure are integrated with the rest of Europe. Its location at the heart of a highly industrialized region helped make it the world's 15th largest trading nation in 2007. The economy is characterized by a highly productive work force, high GNP and high exports per capita. Belgium's main imports are raw materials, machinery and equipment, chemicals, raw diamonds, pharmaceuticals, foodstuffs, transportation equipment, oil products. Its main exports are machinery and equipment, chemicals, finished diamonds, metals and metal products, foodstuffs. The Belgian economy is heavily service-oriented and shows a dual nature: a dynamic Flemish economy and a Walloon economy that lags behind. One of the founding members of the European Union, Belgium strongly supports an open economy and the extension of the powers of EU institutions to integrate member economies.Since 1922, through the Belgium-Luxembourg Economic Union, Belgium and Luxembourg have been a single trade market with customs and currency union.