Foreign relations of Belgium sanctioned the creation of Belgium in 1831 on the condition that the country remain strictly neutral. This policy of neutrality ended after the experience of German occupation during World War I. In the years preceding World War II, Belgium tried to return to a policy of neutrality, but once again, Germany invaded the country. In 1948, Belgium signed the Treaty of Brussels with the United Kingdom, France, the Netherlands, and Luxembourg, and one year later became one of the founding members of the Atlantic Alliance. The Belgians have been strong advocates of European integration, and most aspects of their foreign,
France–Germany relations President Joachim Gauck together marked the centenary of Germany's declaration of war on France by laying the first stone of a memorial in Vieil Armand, France, known in German as Hartmannswillerkopf, for French and German soldiers killed in World War I. Franco-German collaborative enterprises include; France–Germany relations The relations between France and Germany, since 1871, according to Ulrich Krotz, has three grand periods: 'hereditary enmity' (down to 1945), 'reconciliation' (1945–63) and since 1963 the 'special relationship' embodied in a cooperation called "Franco-German Friendship" (; ). In the context of the European Union, the cooperation between the two countries is immense