Great Leader has declared we are no longer defined by our borders, so this is a non-issue.
I have to wonder, since the point of these exercises is to obtain martyrs for publicity, whether or not he may have been selected to make the trip precisely because he could claim to be “American”.
This is similar to the American student who was wounded in a clash with Israeli police (much more important if you want to make your case to Americans);
and Rachel Corrie (whom some believe was “martyred” deliberately by her “handlers”, for the same PR purposes).