There is a legitimate distinction for it. I wouldn't, for example, call the US Ambassador to Japan or a member of the Armed Forces stationed in Okinawa an immig

There is a legitimate distinction for it. I wouldn't, for example, call the US Ambassador to Japan or a member of the Armed Forces stationed in Okinawa an immigrant. It's a distinction becomes looser it describing people who have private sector jobs or have lived in the area for a long time but are jetting between one country and another.