> I'm sure they can agree on a name, and I guess they did already because the official Swiss country code is 'CH' which doesn't correspond to any of their four

> I'm sure they can agree on a name, and I guess they did already because the official Swiss country code is 'CH' which doesn't correspond to any of their four internal country names. To my knowledge absolutely no one calls them the "Confoederatio Helvetica" in normal conversation, neither the Swiss themselves nor foreigners. (And ironically that name seems to have its roots in an occupation by the French revolutionary army and a name given by Napoleon Bonaparte) Also, I don't think you can always assume inhabitants of a country can agree to a common name. Often, names are heavily associated with political issues or power or identity issues and it may be impossible to choose a particular name and staying neutral in the conflict. Example: Try to ask some people from Northern Ireland whether the name of the city is "Derry" or "Londonderry".