In modern times, it refers to any US citizen.
USA
The French belong to the country of France.
No countries belong to another country. If that was the case then the "country" wouldn't be a country.
should belong to every country. the word means friendship
They belong to Portugal.
They belong to Spain.
dortmund belong to Germany
Yankee magazine can be found in some libraries and bookstores such as Barnes and Noble, depending on the store and where in the country it is located. Yankee magazine's subscription can be purchased from their website.
They belong to the Philippines.
The islands of Luzon and Mindanao belong to the country of the Philippines.
It doesn't belong to a country. It belongs to Jewish people all over the world.
Yankee Grey