[Someone]

I don’t think the US Virgin Islands are part of the country called the United States of America. https://en.wikipedia.org/wiki/Territories_of_the_United_Stat...:

“American territories are under American sovereignty and, consequently, may be treated as part of the United States proper in some ways and not others (i.e., territories belong to, but are not considered to be a part of, the United States). Unincorporated territories in particular are not considered to be integral parts of the United States, and the Constitution of the United States applies only partially in those territories.”

(This kind of stuff can be very convolutrd. There are parts of France that aren’t in the EU, for example. https://en.wikipedia.org/wiki/Overseas_France: “Overseas France (French: France d'outre-mer, also France ultramarine)[note 3] consists of 13 French territories outside Europe, mostly the remains of the French colonial empire that remained a part of the French state under various statuses after decolonization. Most, but not all, are part of the European Union”)