Yes,raises an interesting point.I have since been into The JAA Pilot Licensing Overview.As far as They are concerned,most JAA Member States are fully signed up to accept each others aircrew licences.(It itemises each country).Certainly I have flown for 3 seperate JAA countries on my UK issued ATPL.Never once was there a hitch,or even a questioned raised,(correctly so).
As a layman,it appears that the US have not reflected that maybe they are not in a position in this day and age to seperate JAA countriies in their own legislation? Since Common Sense and "Law" are often not the same,I will have to dig deeper before I jump in the saddle.We will see.