Belgium–Luxembourg relations Belgium–Luxembourg relations Belgium–Luxembourg relations are the bilateral relations between the Kingdom of Belgium and Grand Duchy of Luxembourg. Both countries have a history of close cooperation, notably within the Belgium–Luxembourg Economic Union, Benelux and within the European Union. Belgium has an embassy in Luxembourg and Luxembourg has an embassy in Brussels. The Belgian ambassador to Luxembourg is Thomas Antoine. The Luxembourg ambassador to Belgium is Jean-Jacques Welfring. Belgium and Luxembourg share a land border. On the Belgian side of the border, nearly all of it is with the province of Luxembourg; a small part in the north is with the
Low Countries the Austrian Netherlands. The United Kingdom of the Netherlands (1815–1830) temporarily united the Low Countries again, before this split into the three modern countries of the Netherlands, Belgium and Luxembourg. During the early months of World War I (around 1914), The Central Powers invaded the Low Countries of Luxembourg and Belgium in what has been come to be known as the German invasion of Belgium. It led to the German occupation of the two countries. However, the German advance into France was quickly halted, causing a military stalemate for most of the war. In the end, a total of approximately