Nationality law

Laws help us know where we belong. These rules show how a person joins a new land. Some rules say you belong where you are born. This is called being born on the soil.

Other rules look at your family. If your parents are from a place, you might belong there too. This is called the rule of blood.

Some people join a new land by marriage. This can change where they belong. Most people can also join a new land by living there for a long time. This is called naturalization. It is a way to feel at home in a new place.

Every country has laws about who belongs to it. These laws define nationality. Nationality is how you belong to a nation. Some people are called foreigners if they are not nationals. If a person has no nationality, they are called stateless.

There are three main ways to get nationality. The first is jus soli. This means you get nationality by being born on the soil. This includes land, ships, or planes. The second is jus sanguinis. This is the rule of blood. It means you get nationality from your parents or ancestors. Some places, like Italy, use this rule. The third is jus matrimonii. This is the rule of marriage. In some places, like Cape Verde, marriage can give nationality.

Most people can also join a nation through naturalization. This is a way to join after living in a place for a long time. Some countries make this easier for people with certain family roots. For example, Armenia and Bulgaria have special ways for people of their origin to join. China also helps people of Chinese descent return to the country.

Nationality law is a set of rules used by a country. These rules decide how a person becomes a member of that nation. They also explain how a person might lose that identity. Some people use the word "citizenship" to mean the same thing. However, law experts often see a difference between the two. Nationality describes your link to a nation in international law. Citizenship describes your relationship with a country's own rules.

There are three main ways that people gain nationality. The first way is called jus soli, or the right of the soil. This means you get nationality because you were born on a country's land. This can also include being born on a registered ship or plane. The second way is jus sanguinis, or the right of blood. This means you get nationality from your parents or ancestors. The third way is jus matrimonii, or the right of marriage.

Many different countries use these rules in their own ways. For example, many lands in the Americas use the jus soli rule. This idea came from English common law long ago. In that tradition, anyone born on the King's land owed him allegiance. Today, countries like the United States, Canada, and Australia use similar laws. Some places, like Thailand or Cambodia, have extra rules about living there first. Other places, like some Middle-Eastern countries, use rules based on the father's birth.

Other rules focus on family history or marriage. In Italy, you might get nationality if you have an Italian ancestor. This can go all the way back to when the Italian state was founded. In Cape Verde, marriage can also grant nationality. In the past, many women automatically took their husband's nationality when they married. This often caused problems, like losing their original nationality or help from their own country. Today, most places do not change a person's nationality just because they marry.

Most people can also join a nation through naturalization. This is a process for people who live in a country for a long time. Some nations make this easier for people with specific family roots. Armenia and Bulgaria have special, faster ways for people of their origin to join. China also gives special help to people of Chinese descent who want to return. Even with these rules, every country has the right to decide its own members. However, they must still follow human rights laws to treat people fairly.

Nationality law consists of the rules used by a sovereign state to define national identity. These laws dictate how a person acquires nationality and how they might lose it. In international law, nationality is the legal link between a person and a state. This is distinct from citizenship, which describes a person's relationship to a state under its own domestic statutes. While some nations use these terms interchangeably, they have different legal meanings. A person who is not a national of a country is typically called a foreigner or an alien. If a person has no recognized nationality in any jurisdiction, they are considered stateless.

There are three primary principles used to grant nationality. The first is jus soli, or the right of the soil. This principle confers nationality based on being born within a country's territorial jurisdiction. This includes land, and sometimes registered vessels like ships or aeroplanes. The second is jus sanguinis, or the right of the blood. This principle bases nationality on a person's ancestry or parentage. The third is jus matrimonii, or the right of marriage. Many countries use a combination of these three principles to form their laws.

Jus soli often stems from the English common law tradition. Under this tradition, anyone born on the King's land owed him allegiance. This concept was inherited by colonies and codified into laws in the United States, Canada, and Australia. However, jus soli is not always absolute. In Cambodia and Thailand, authorities may require lawful residence before granting this right. Some Middle-Eastern countries apply jus soli generationally. In these places, a child only gets nationality if their father was born in that territory. Some laws may even restrict these rights based on a person's age.

Jus sanguinis focuses on the transmission of nationality through family lines. For example, Italy allows nationality to be transmitted perpetually if an Italian ancestor can be found. This lineage can go back as far as the founding of the Italian state. Other states place stricter limits on this process. They might only allow the transmission of nationality up to the second generation. This ensures that the connection to the nation remains through documented descent.

Jus matrimonii involves granting nationality based on marriage. Cape Verde is a prominent example of a country with these laws. In the early 20th century, many states required a woman to take her husband's nationality. This often caused significant legal problems for families. Spouses could lose their original nationality or their right to consular assistance. Men could also become subject to military service obligations because of marriage. Today, most jurisdictions have shifted away from these automatic changes. Marriage or divorce usually does not automatically change a person's nationality anymore.

Some states use a unique system called jus officii. The Vatican City uses this principle for its citizens. Citizenship is granted based on an appointment to work for the Holy See. This status usually ends when the job ends. However, citizenship can extend to a spouse and children living in the city. Under the Lateran Treaty, anyone who loses Vatican citizenship without another nationality becomes an Italian citizen. Most other people acquire nationality through naturalization. This is a process for long-term residents based on specific legal conditions.

Many countries offer simplified naturalization for specific ethnic groups. These laws often aim to provide a safe haven for diaspora populations. Armenia and Bulgaria both offer facilitated procedures for people of their origin. China provides incentives for returning Overseas Chinese, such as tax breaks and higher salaries. Taiwan also prioritizes returning Taiwanese and overseas Chinese. Even with these specific rules, a state's power is not absolute. International custom and human rights obligations limit how states handle nationality. For instance, Article 15 of the Universal Declaration of Human Rights protects the right to a nationality. States must ensure they do not arbitrarily deprive people of their status.