Where is the nationality of the United States?

American citizens refer to individuals who have federal citizenship of the United States of America and enjoy civil rights stipulated by American laws. Foreign citizens can only apply for American citizenship after meeting the requirements.

As for American citizenship, it is often mistaken for the same as American permanent residency (commonly known as American green card). In fact, American permanent residency and American citizenship are two different concepts. To apply for American citizenship (except those who automatically acquire American citizenship according to the principle of birth and descent), you must first apply to USCIS, an immigration agency, and legally obtain permanent residency. Then you can apply for naturalization and obtain American citizenship after approval.