Automatically acquire American citizenship according to the principle of descent. That is, as long as American citizens have lived in the United States for 65,438+00 years, and among them, they have lived in the United States for 5 years after the age of 65,438+04, their children born in foreign countries also become American citizens at birth. Therefore, the original nationality of American citizens is actually a mixed principle, that is, the principle of birthplace and the principle of descent are adopted, and the principle of birthplace is the main one.
Extended data:
In the world, citizenship (there are very complicated and important differences between citizenship and nationality, but because these differences are not involved in this paper, they are used interchangeably as synonyms) can be obtained in three ways: bloodline right, territorial right and naturalization.
Naturalization means that non-nationals become nationals through legal procedures. Different countries have stipulated different naturalization methods and procedures, and marriage and employment are the more common naturalization methods.
Jus sanguinis, also known as human rights, comes from Roman law, which means that the civil rights of natural persons come from one or both of their biological parents. In other words, regardless of the nationality of the parents, the children passed down naturally acquire the same nationality. This is the most basic and common form of obtaining citizenship, and it is a right recognized by almost all countries in the world.
Jus soli (jus soli) comes from the common law of Anglo-American law system, which means that anyone born in a country's territory, regardless of their parents' nationality or permanent residency, naturally has the citizenship of that country.
References:
Baidu Encyclopedia-American Nationality