Nakamura is described as an American player, but he lives in Napoli. Levon Aronian is Armenian, but he lives in Berlin. Players often don't live in the country they represent.
But Alireza does not represent Iran, period. The other players are playing for their respective countries.
Btw, I think you are mistaken about Levon Aronian. See recent tragedy with his wife. Occurred in Armenia. He might be living in Berlin part time as its closer to all the action.
