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,
Catholic Church and Nazi Germany the Vatican that the Germans planned to invade France through the Netherlands and Belgium on May 10. On May 7, Alfred Jodl noted in his diary that the Germans knew the Belgian envoy to the Vatican had been tipped off, and the Fuehrer was greatly agitated by the danger of treachery. Following the Fall of France, peace overtures continued to emanate from the Vatican as well as Sweden and the United States, to which Churchill responded resolutely that Germany would first have to free its conquered territories. In Rome in 1942, US envoy Myron C. Taylor, thanked the Holy See