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,
Military Administration in Belgium and Northern France to ensure its good behavior. The Military Administration formed the core of a wider command structure which allowed the governance of occupied Belgium. It could rely on both military and civilian components: Military Administration in Belgium and Northern France The Military Administration in Belgium and Northern France () was an interim occupation authority established during the Second World War by Nazi Germany that included present-day Belgium and the French departments of Nord and Pas-de-Calais. The administration was also responsible for governing the "zone interdite", a narrow strip of territory running along the French northern and eastern borders. It remained in