To be fair, the rules are insane. There are several different ways in which you might be or become a British citizen, and there are five other kinds of British

To be fair, the rules are insane. There are several different ways in which you might be or become a British citizen, and there are five other kinds of British (non-citizen) nationality. Irish citizens are in a category of their own. And then there's rules for other EU citizens and per-country rules for everyone else.