In international law, a stateless person is someone who is "not considered as a national by any state under the operation of its law". Some stateless people are also refugees. However, not all refugees are stateless, and many people who are stateless have never crossed an international border. At the end of 2022, the United Nations High Commissioner for Refugees estimated 4.4 million people worldwide as either stateless or of undetermined nationality, 90,800 (+2%) more than at the end of 2021.
Belgian nationality law provides for the conditions in which a person holds Belgian nationality and is based on a mixture of the principles of jus sanguinis and jus soli.
Dutch nationality law details the conditions by which a person holds Dutch nationality. The primary law governing these requirements is the Dutch Nationality Act, which came into force on 1 January 1985. Regulations apply to the entire Kingdom of the Netherlands, which includes the country of the Netherlands itself, Aruba, Curaçao, and Sint Maarten.
Swedish nationality law determines entitlement to Swedish citizenship. Citizenship of Sweden is based primarily on the principle of jus sanguinis. In other words, citizenship is conferred primarily by birth to a Swedish parent, irrespective of place of birth.
The citizenship law of the Czech Republic is based on the principles of jus sanguinis or "right by blood". In other words, descent from a Czech parent is the primary method of acquiring Czech citizenship. Birth on Czech territory without a Czech parent is in itself insufficient for the conferral of Czech citizenship. Every Czech citizen is also a citizen of the European Union. The law came into effect on 1 January 1993, the date of the dissolution of Czechoslovakia, and has been amended in 1993, 1995, 1996, 1999, 2002, 2003, and 2005. Since 1 January 2014, multiple citizenship under Czech law is allowed.
Slovenian nationality law is based primarily on the principles of jus sanguinis, in that descent from a Slovenian parent is the primary basis for acquisition of Slovenian citizenship. However, although children born to foreign parents in Slovenia do not acquire Slovenian citizenship on the basis of birthplace, place of birth is relevant for determining whether the child of Slovenian parents acquires citizenship.
Hungarian nationality law is based on the principles of jus sanguinis. Hungarian citizenship can be acquired by descent from a Hungarian parent, or by naturalisation. A person born in Hungary to foreign parents does not generally acquire Hungarian citizenship. A Hungarian citizen is also a citizen of the European Union.
Japanese Nationality Law details the conditions by which a person holds nationality of Japan. The primary law governing nationality regulations is the 1950 Nationality Act.
Belarusian nationality law regulates the manner in which one acquires, or is eligible to acquire, Belarusian nationality, citizenship. Belarusian citizenship is membership in the political community of the Republic of Belarus.
Turkish nationality law is based primarily on the principle of jus sanguinis. Children who are born to a Turkish mother or a Turkish father are Turkish citizens from birth. The intention to renounce Turkish citizenship is submitted in Turkey by a petition to the highest administrative official in the concerned person's place of residence, and when overseas to the Turkish consulate. Documents processed by these authorities are forwarded to the Ministry of Interior (Turkey) for appropriate action.
Singapore nationality law details the conditions by which a person holds Singapore nationality. The primary law governing nationality requirements is the Constitution of Singapore, which came into force on 9 August 1965.
Estonian citizenship law details the conditions by which a person is a citizen of Estonia. The primary law currently governing these requirements is the Citizenship Act, which came into force on 1 April 1995.
Danish nationality law is governed by the Constitutional Act and the Consolidated Act of Danish Nationality. Danish nationality can be acquired in one of the following ways:
Luxembourg nationality law is ruled by the Constitution of Luxembourg. The Grand Duchy of Luxembourg is a member state of the European Union and, therefore, its citizens are also EU citizens.
The Croatian nationality law dates back from June 26, 1991, with amendments on May 8, 1992, October 28, 2011, and January 1, 2020, and an interpretation of the Constitutional Court in 1993. It is based upon the Constitution of Croatia. It is mainly based on jus sanguinis.
Citizenship of Montenegro is the citizenship of Montenegro. It is regulated by a citizenship law, ratified by Parliament in 2008 and published by the Official Journal of Montenegro. It is mainly based on jus sanguinis. There are also provisions for citizenship-by-investment, though the government has suspended the relevant guidelines in the face of European Union concern.
Monégasque nationality law determines entitlement to Monégasque citizenship. Citizenship of Monaco is based primarily on the principle of jus sanguinis. In other words, citizenship is conferred primarily by birth to a Monégasque parent, irrespective of place of birth.
Multiple citizenship is a person's legal status in which a person is at the same time recognized by more than one country under its nationality and citizenship law as a national or citizen of that country. There is no international convention that determines the nationality or citizenship status of a person, which is consequently determined exclusively under national laws, that often conflict with each other, thus allowing for multiple citizenship situations to arise.
Thai nationality law includes principles of both jus sanguinis and jus soli. Thailand's first Nationality Act was passed in 1913. The most recent law dates to 2008.
San Marino nationality law is contained in the provisions of the Law on Citizenship (2000) which was amended in 2004 and 2016 and in the relevant provisions of the San Marino Constitution. A person may be a citizen of San Marino through birth, descent or through naturalisation.
