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,
Overseas country of France Caledonia, which has the unique status of a "sui generis" collectivity, is also sometimes incorrectly referred to as an overseas country. However, if the people of New Caledonia choose to remain part of France in a referendum on independence scheduled for November 2018, the community may become an overseas country. Overseas country of France Overseas country () is the designation for the overseas collectivity of French Polynesia. French Polynesia was an overseas territory until the constitutional reform on 28 March 2003 created the overseas collectivities. Then, on 27 February 2004 a law was passed giving French Polynesia the particular designation