<P> In 1948 the Treaty of Brussels was signed between Belgium, France, Luxembourg, the Netherlands and the United Kingdom . It was further revisited in 1954 at the Paris Conference, when the Western European Union was established . It was declared defunct in 2011, after the Treaty of Lisbon, and the Treaty of Brussels was terminated . When the Western European Union was dissolved, it had 10 member countries, six associate member countries, five observer countries and seven associate partner countries . </P> <P> The CIA classifies seven countries as belonging to "Western Europe": </P> <Ul> <Li> Belgium </Li> <Li> France </Li> <Li> Ireland </Li> <Li> Luxembourg </Li> <Li> Monaco </Li> <Li> Netherlands </Li> <Li> United Kingdom </Li> </Ul> <P> The CIA also classifies three countries as belonging to "Southwestern Europe": </P>

What countries are considered part of western europe