Nationality -Meaning , Acquisition, and Loss in Public International law
Nationality is one of the most fundamental concepts in public international law. It establishes the legal bond between an individual and a sovereign state, forming the primary basis for diplomatic protection, state jurisdiction, and international rights and obligations. While often equated with citizenship domestically, nationality in international law focuses on the interstate relationship. States enjoy broad discretion in determining their nationals, but this power is limited by customary rules, human rights norms, and treaty obligations particularly the prohibitions on arbitrary deprivation of nationality and statelessness .This article examines the meaning of nationality, the main modes of its acquisition and loss, and the evolving balance between state sovereignty and international standards.
Nationality - Meaning, Acquisition, and Loss
Meaning of Nationality
Nationality is the legal bond between an individual and a State, signifying the individual's membership in an independent political community. It establishes a relationship involving reciprocal rights and duties between the State and the individual. Starke defines nationality as the legal status of membership of the collectivity of individuals represented through the concept of the State. Oppenheim describes it as the quality of being a subject of a particular State, while Fenwick terms it as the bond which unites a person to a given State, entitling them to protection and subjecting them to obligations under that State's laws.
In Nottebohm Case (Liechtenstein v. Guatemala) (1955), the International Court of Justice (ICJ) observed that nationality is a legal bond based on a genuine connection of existence, interests, and sentiments. The Court held that for a State to exercise diplomatic protection, the nationality it confers must correspond to a real and effective connection between the person and the State. Thus, nationality is both a legal and social connection, forming the basis of rights and responsibilities in international law.
Nationality is distinct from domicile and citizenship. While domicile indicates. residence with the intention to remain permanently, nationality establishes legal membership of a State. Citizenship, on the other hand, pertains to political rights under municipal law, whereas nationality is a broader concept recognized in international law.
Acquisition of Nationality
Nationality can be acquired in the following ways:
1. By Birth:
This is the most common mode of acquiring nationality. It may occur according to jus soli (place of birth) or jus sanguinis (nationality of parents). Some States adopt one or both principles.
2. By Naturalisation:
A person may acquire nationality of another State by fulfilling the legal requirements prescribed for naturalisation, such as residence or allegiance. Nationality may also be acquired through marriage when a woman assumes her husband's nationality. The Nottebohm Case clarified that naturalisation must reflect a genuine link between the individual and the State granting nationality; otherwise, it may not be internationally recognized.
3. By Cession:
When a State cedes its territory to another, inhabitants of the ceded area acquire the nationality of the acquiring State.
4. By Subjugation:
Upon conquest, the citizens of the defeated State acquire the nationality of the conquering State.
5. By Resumption or Redintegration:
Persons who have lost their original nationality may reacquire it upon fulfilling certain prescribed conditions.
Loss of Nationality
Nationality may be lost in several ways:
1. Release: Citizens may voluntarily seek release from their nationality.
2. Deprivation: States may denationalise individuals who enter foreign service or act against national interests.
3. Long Residence Abroad: Prolonged residence outside the home State may lead to loss of nationality.
4. Renunciation: Dual nationals may voluntarily renounce one nationality.
5. Substitution: In cases of cession or subjugation, the old nationality is replaced by that of the new sovereign State.State granting nationality; otherwise, it may not be internationally recognized.
Conclusion
Nationality serves as the essential legal link between an individual and a State. It determines a person's legal identity in international law and forms the basis of diplomatic protection and jurisdiction. As affirmed in the Nottebohm Case, it is not merely a technical status but a reflection of a genuine and effective relationship between an individual and a State.
