Define 'Western Europe'.... does it include Cyprus? The Czech Republic? Croatia? Slovakia? Hungary?
If you use the UN Geoscheme definition then neither the UK or Denmark are part of 'Western Europe'. And if you look at the CIA World Factbook definition, you'd have to omit Italy, Switzerland, Germany, Denmark, Sweden, Austria, Luxembourg and several others.
If you use the UN 'Western Europe and Other' grouping then you'd have to include Turkey. If you use the Eu definition then you'd have to include the countries above.