Nationality is the legal relationship between an individual human and a nation state. Nationality normally confers some protection of the individual by the state, and some obligations on the individual towards the state. What these rights and duties are vary from country to country. It differs technically and legally from citizenship, although in most modern countries all nationals are citizens of the state and all citizens are nationals of the state.
Nationality affords the state jurisdiction over the Person and affords the person the protection of the state. The most common distinguishing feature of citizenship is that citizens have the right to participate in the political life of the state, such as by voting or standing for election. The term national can include both citizens and non-citizens. By custom, it is the right of each state to determine who its nationals are. Such determinations are part of nationality law. In some cases, determinations of nationality are also governed by public international law—for example, by treaties on statelessness and the European Convention on Nationality.
In English, the same word is used in the sense of an ethnic group (a group of people who share a common ethnic identity, language, culture, descent, history, and so forth). This meaning of nationality is not defined by political borders or passport ownership and includes nations that lack an independent state (such as the Scots, Welsh, English, Basques, Kurds, Tamils, Hmong, Inuit and Māori).
Individuals may also be considered nationals of groups with autonomous status which have ceded some power to a larger government, such as the federally recognized tribes of Native Americans in the United States. Spanish law recognises the autonomous communities of Andalusia, Aragon, Balearic Islands, Canary Islands, Catalonia, Valencia, Galicia and the Basque Country as "nationalities" (nacionalidades).
Article 15 of the Universal Declaration of Human Rights states