[El Gato]

So how is determination made for children born of two US citizens, on active duty for the military of the US, but not born on US soil? Hence the need for statutes to determine those cases

not by statute. By referance to what BP2 calls "founding era documents", in this case Vattel and Blackstone. Both make it clear that children born of citizen parents while those parents are serving the country, but outside of it are "natural born" citizens/subjects.

[etraveler13]

call it what you want, I call it
Title 8 of the U.S. Code, Section 1401