Granted the UK only has 3 constituent countries: England, Scotland and Wales. Northern Ireland is considered a territory of the UK
But yeah, forgetting Luxembourg is not "technically" wrong as one of the demonyms of Luxembourg is Luxembourger
But that is still one of them, Luxembourgish
Granted the UK only has 3 constituent countries: England, Scotland and Wales. Northern Ireland is considered a territory of the UK
But yeah, forgetting Luxembourg is not "technically" wrong as one of the demonyms of Luxembourg is Luxembourger
But that is still one of them, Luxembourgish