International law — International comity — Naturalization decreeCollateral attack on naturalization decree in courts of another State — The law of the United States of America.

Nationality-Proof of — Nationality jure sanguinis — Naturalization of parents — Validity of — Vulnerability to collateral attack in courts of another State — The law of the United States of America.

Nationality — Naturalization — Validity of naturalization decree Collateral attack on — In courts of another State — International comity — The law of the United States of America.