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 super nation encompassing the whole of Europe. Other practical problems of a possible core Europe are that France and Germany find it hard to establish agreement within various policy areas. Both countries want to strengthen European defence forces, but Germany is cutting its defence spending. Both France and Germany would like to boost the EU's foreign policy, but France no longer supports Germany's call for majority voting in foreign policy. On asylum and migration policies, the two countries have quite different approaches, and progress in other areas of justice and home affairs has been slow. However the two countries manage