It's the rights given to you by the Treaty of NiceOriginally Posted by rogedavi
Basically your rights to live and work as a EU citizen in any other EU country.
Why Joe has mentioned it is that unlike UK laws, EU laws would allow you to bring a spouse to the UK even if they are under 21. But the only way you can force the British government to treat you as a EU citizen rather than a British citizen is if you exercise your treaty rights in another EU state for a period of time.
