U.S. citizen
A U.S. citizen is a person who was born in the United States or has gone through the process of becoming a naturalized citizen. U.S. citizens have certain rights and responsibilities, including the right to vote, the right to work and live in the United States, and the obligation to pay taxes.
national of the United States
Section 101(a)(22) of the INA provides that the term “national of the United States” includes all U.S. citizens as well as persons who, though not citizens of the United States, owe permanent allegiance to the United States (non-citizen nationals).
The Truth As I See It
This website has a chart comparing the USA with the corporate US.http://usavsus.info/
Does an American national owe permanent allegiance to the United States?
No, an American national does not owe permanent allegiance to the United States. An American national owes permanent allegiance to a state (small s).