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NATIONALITY
SYNOPSIS
I. Meaning and Definition of ‘Nationality’
1. Definition by Oppenheim
2. Definition by Fenwick
3. Jurisprudential Characterization
II. Importance of Nationality in International Law
1. Right of Diplomatic Protection
2. Determination of Legal Character
3. Application of Extradition Law
4. Absolute Obligation to Receive Nationals
5. Compulsory Military and Civic Services
6. Protection Against Extraterritorial Persecution
7. Standing to Present International Claims
8. Allocation of State Responsibility
III. Concepts Resembling Nationality and Their Distinctions
1. Distinction Between Nationality and Domicile
a) Factual Definition versus Intentional Residence
b) Legal Status versus Regional Locality
c) Plurality and Plenary Continuity
d) Geopolitical Scope
2. Distinction Between Nationality and Citizenship
a) International Context versus Municipal Parameters
b) Scope of Legal Standing
c) Civil and Political Rights
d) Territorial Residence Requirements
IV. Modes of Acquisition of Nationality
1. By Birth (Jus Soli)
2. By Descent (Jus Sanguinis)
3. By Naturalization
4. By Resumption or Reintegration
5. By Subjugation or Annexation
6. By Cession
7. By Option
8. By Registration
V. Modes of Loss of Nationality
1. By Release
2. By Deprivation
3. By Long Residence Abroad
4. By Renunciation
5. By Substitution
VI. Short Notes on Complex Issues of Nationality
1. Double (or Dual) Nationality
a) Factual Origins
i. Birth:
ii. Adoption:
iii. Legitimation:
iv. Naturalization:
v. Marriage:
b) International Limitations and Practical Challenges
i. The Limit of Diplomatic Claims:
ii. Conflicting Sovereign Duties
c) Solutions Developed via the Hague Convention of 1930
i. Prevention of Statelessness:
ii. Recognition of Dual Standing:
iii. Bar on Mutual Diplomatic Protection:
iv. The Third-State Rule:
v. Marital Provisos:
vi. The Right to Divest:
2. Statelessness
a) Primary Causes of Statelessness
b) Resulting Practical Protections Issues
c) International Human Rights Treaties and Remedial Frameworks
3. Aliens (Foreign Nationals)
a) International Standards for the Rights of Aliens
b) Duties and Legal Restrictions Imposed on Aliens
i. Subjection to Local Laws:
ii. Administrative Registration:
iii. Fiscal Obligations:
iv. Temporary Allegiance:
v. Eminent Domain and Expropriation:
vi. Expulsion and Deportation:
VII. Conclusion
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I. Meaning and Definition of ‘Nationality’
In public international law, ‘Nationality’ serves as the primary legal and political link between an individual and a sovereign State. It represents membership in a specific civil society and functions as the legal basis for an individual's international identity.
1. Definition by Oppenheim
According to Lassa Oppenheim:
“The nationality of an individual is the quality of being a subject of a certain state and, therefore, its citizens.”
2. Definition by Fenwick
According to Charles G. Fenwick:
“Nationality may be defined as the bond which unites a person to a given State, which constitutes his membership in the particular state, which gives him a claim to the protection of that state and which subjects him to the obligations created by the laws of that state.”
3. Jurisprudential Characterization
Nationality provides the legal basis for allocating individuals among different sovereign jurisdictions. It is a connecting factor that determines how the benefits, protections, and duties established under public international law apply to natural persons.
Under customary international law, the regulation of nationality falls primarily within the domestic jurisdiction of each state. Every sovereign nation retains the right to determine through its own constitutional provisions and municipal statutes who is eligible to acquire or retain its nationality.
II. Importance of Nationality in International Law
The concept of nationality is central to several areas of global governance and state interaction:
1. Right of Diplomatic Protection
Nationality is a prerequisite for a State to exercise diplomatic protection on behalf of an individual. If a national suffers an injury or a denial of justice due to an internationally wrongful act committed by a foreign state, their home state has the legal standing to intervene and seek reparation on their behalf.
2. Determination of Legal Character
During times of armed conflict, nationality serves as the baseline for determining an individual's legal status as a friendly alien or an enemy national, which influences their property rights and liberty within a state's territory.
3. Application of Extradition Law
Nationality influences extradition proceedings. Many sovereign states maintain constitutional or statutory prohibitions against extraditing their own nationals to face trial in foreign jurisdictions, choosing instead to prosecute the individual domestically under the principle of aut dedere aut judicare (either extradite or prosecute).
4. Absolute Obligation to Receive Nationals
Under customary international law, a State is under a legal obligation to receive its own nationals back into its territory if they are deported, expelled, or excluded by a foreign state.
5. Compulsory Military and Civic Services
A State possesses the sovereign authority to compel its nationals to perform military service, pay taxes, and fulfill civic obligations, regardless of whether they reside domestically or abroad. Conversely, a state cannot compel foreign nationals to perform military service.
6. Protection Against Extraterritorial Persecution
A state cannot exercise direct penal jurisdiction or inflict discriminatory punishment upon a foreign national for actions performed entirely outside its borders, except where permitted under recognized principles of international criminal jurisdiction (such as the protective or universal principles).
7. Standing to Present International Claims
To bring a claim before an international tribunal or claims commission for injuries suffered by an individual, the state asserting the claim must demonstrate that the injured party possessed its nationality at the time of the injury, maintaining the continuous chain of nationality.
8. Allocation of State Responsibility
A State may incur international responsibility if it fails to exercise due diligence in preventing its nationals from launching cross-border unlawful activities, such as maritime piracy originating from coastal zones or transnational state-sponsored militancy.
III. Concepts Resembling Nationality and Their Distinctions
While terms like nationality, domicile, and citizenship are occasionally used interchangeably in popular discourse, they carry distinct definitions within legal frameworks.
1. Distinction Between Nationality and Domicile
a) Factual Definition versus Intentional Residence
Nationality represents an individual's formal legal allegiance to a sovereign nation, identifying them on the international plane. Domicile, derived from civil law, refers to the place where an individual has their true, fixed, and permanent home, and to which they intend to return whenever they are absent (animus revertendi).
b) Legal Status versus Regional Locality
Nationality determines an individual's political relationship with a state, whereas domicile determines their relationship with a specific legal system or locality within a state, which often governs matters of personal law, succession, and domestic contracts.
c) Plurality and Plenary Continuity
An individual can possess multiple nationalities or be entirely stateless under international law. In contrast, conflict-of-laws principles dictate that no person can be without a domicile, and an individual cannot maintain more than one operative domicile at any point in their life.
d) Geopolitical Scope
Nationality is primarily an instrument of public international law that regulates interstate relations. Domicile is a concept of private international law (conflict of laws) used by domestic courts to resolve choice-of-law issues in civil matters.
2. Distinction Between Nationality and Citizenship
a) International Context versus Municipal Parameters
Nationality indicates a person's membership in a state for international law purposes, serving as their global identity. Citizenship denotes the specific status of an individual under a state's internal municipal laws, defining their relationship to the domestic constitution.
b) Scope of Legal Standing
Nationality is the broader category; while all citizens of a state share its nationality, not all nationals are necessarily granted full status as citizens. For instance, individuals residing in overseas territories or dependencies may hold the nationality of the parent state for international protection purposes without possessing full domestic civil and political rights.
c) Civil and Political Rights
Citizenship grants specific constitutional rights within a state, such as the right to vote, contest public office, and access senior civil service positions. Nationality, on its own, guarantees international protection and entry rights but does not automatically confer internal political rights.
d) Territorial Residence Requirements
The retention of citizenship may be linked to ongoing domestic residence requirements, tax compliance, or civic status, whereas nationality can persist independently of an individual's physical residence.
IV. Modes of Acquisition of Nationality
Sovereign states determine the criteria for acquiring nationality through their municipal legislation. Public international law recognizes several standard methods for this acquisition:
1. By Birth (Jus Soli)
The principle of jus soli (law of the soil) confers nationality automatically based on an individual's birth within the territorial limits of a State, regardless of their parents' nationality. This approach is followed by nations across the Western Hemisphere, including the United States of America.
2. By Descent (Jus Sanguinis)
The principle of jus sanguinis (law of the blood) confers nationality based on the citizenship of one or both parents at the time of the individual's birth, irrespective of the physical location where the birth occurs. This principle is utilized by states such as Germany, France, and India to preserve ties with their global diasporas.
3. By Naturalization
Naturalization is the administrative process by which an individual voluntarily acquires the nationality of a foreign state after birth, relinquishing or modifying their original allegiance. This transition can occur through marriage to a national, long-term legal residence, adoption by a foreign citizen, or a direct executive grant following an application.
International law establishes that naturalization is a discretionary act of the state rather than an inherent right of the applicant. In the foundational Nottebohm Case (Liechtenstein v. Guatemala), Second Phase, Judgment, ICJ Reports 1955, p. 4, the International Court of Justice ruled that for a grant of naturalization to be recognized on the international plane against other states, there must exist a "genuine link"—a meaningful social and factual connection between the individual and the naturalizing state.
In India, naturalization is regulated by the Citizenship Act, 1955. This framework was modified by the Citizenship (Amendment) Act, 2019 (CAA), which expedited the path to citizenship via naturalization for specific eligible migrants from Hindu, Sikh, Buddhist, Jain, Parsi, and Christian religious minorities who fled neighboring countries before December 2014, reflecting the state's discretion to define naturalization criteria.
4. By Resumption or Reintegration
Resumption occurs when an individual who previously lost or surrendered their original nationality re-acquires it by fulfilling specific statutory conditions, such as returning to live in their home country and renouncing any foreign naturalization acquired in the interim.
5. By Subjugation or Annexation
When a sovereign State annexes or integrates the territory of another state, the population of the absorbed region loses their original nationality and acquires the nationality of the successor State. For example, when India integrated Goa, Daman, and Diu, the resident population transitioned from Portuguese nationality to Indian nationality.
6. By Cession
When a state formally cedes a portion of its territory to another nation via a bilateral treaty, the inhabitants of that ceded zone typically lose their original nationality and assume that of the incoming sovereign, unless the treaty contains specific transitional provisions or a right of option.
7. By Option
When a parent state undergoes partition or dissolution, creating multiple successor nations, the affected population is often granted a contractual "right of option" to choose which successor state's nationality they wish to assume.
8. By Registration
States offer paths to nationality through formal registration for specific categories of individuals, such as persons of heritage residing abroad, minor children of citizens, or individuals with ancestral links to the nation. Section 5 of the Indian Citizenship Act, 1955, outlines the domestic requirements for citizenship by registration.
V. Modes of Loss of Nationality
An individual's legal bond with a state can be terminated through several distinct administrative or voluntary processes:
1. By Release
Certain legal systems allow citizens to apply for a formal release from their nationality obligations, which is usually contingent upon proving they have acquired or are about to acquire foreign citizenship to prevent statelessness.
2. By Deprivation
Deprivation is a unilateral administrative penalty imposed by a State that strips an individual of their nationality. This measure can be triggered if the individual enters the civil or military service of a foreign power without permission, commits acts of treason, acts against national security, trades with an enemy nation during a war, or if it is discovered that their naturalization was obtained through fraud or misrepresentation.
3. By Long Residence Abroad
The municipal laws of some states provide for the automatic loss of nationality if a naturalized citizen resides continuously outside their home country for an extended period without registering with a domestic consulate or declaring an intent to retain their citizenship.
4. By Renunciation
Renunciation is a voluntary act by which an individual formally declares their intention to surrender their nationality. This mechanism is frequently used by individuals who hold dual nationality to resolve conflicting legal obligations or to comply with the laws of countries that prohibit multiple citizenship.
5. By Substitution
Loss by substitution occurs automatically when a state's laws dictate that the voluntary acquisition of a foreign nationality through naturalization results in the immediate forfeiture of the individual's original nationality. This rule aligns with Article 9 of the Constitution of India, which prohibits the retention of Indian citizenship upon the voluntary acquisition of citizenship in another country.
VI. Short Notes on Complex Issues of Nationality
1. Double (or Dual) Nationality
a) Factual Origins
Dual or multiple nationality arises due to conflicts between different national legal systems. The primary scenarios include:
i. Birth: A child born in a jus soli state (like the US) to parents who hold the citizenship of a jus sanguinis state (like India) automatically acquires dual nationality at birth under the respective laws.
ii. Adoption: A child adopted by foreign nationals may acquire the adoptive parents' nationality while retaining their original nationality of birth.
iii. Legitimation: An extramarital child who initially holds only the mother's nationality may acquire the father's nationality if subsequent legal validation or marriage occurs under that country's personal laws.
iv. Naturalization: An individual who undergoes naturalization abroad may acquire a new identity without their home state's laws requiring the forfeiture of their original citizenship.
v. Marriage: The laws of some states automatically confer nationality upon a foreign spouse, which can result in dual nationality if the spouse's home country does not mandate forfeiture.
b) International Limitations and Practical Challenges
Dual nationality can lead to legal and diplomatic complications:
i. The Limit of Diplomatic Claims: Under the principle of effective nationality, a State cannot exercise diplomatic protection on behalf of one of its nationals against another State that also recognizes that individual as its own citizen.
ii. Conflicting Sovereign Duties: A dual national may face conflicting legal demands from both states, such as compulsory military service or global tax obligations. During an armed conflict between the two nations of nationality, the individual's legal status and allegiances can become complicated.
c) Solutions Developed via the Hague Convention of 1930
To resolve these jurisdictional issues, the Hague Convention on Certain Questions Relating to the Conflict of Nationality Laws (1930) established several principles:
i. Prevention of Statelessness: States are encouraged to draft rules that ensure children born within their borders who would otherwise be stateless receive local nationality.
ii. Recognition of Dual Standing: Each state retains the right to treat an individual who holds multiple nationalities as its citizen while they are within its jurisdiction.
iii. Bar on Mutual Diplomatic Protection: A state may not extend diplomatic protection to one of its nationals against a state whose nationality that person also possesses.
iv. The Third-State Rule: Within a neutral third country, a dual national is treated as if they possess only one nationality, determined by evaluating their habitual residence or closest factual connection (effective nationality).
v. Marital Provisos: Legal changes affecting nationality due to marriage or dissolution should be structured to prevent automatic statelessness by verifying the possession of an alternative identity.
vi. The Right to Divest: Individuals holding multiple nationalities should be provided a legal path to renounce one identity upon reaching adulthood.
2. Statelessness
Statelessness represents a condition where an individual is not considered a national by any State under the operation of its laws. A stateless person lacks a formal legal identity on the international plane.
a) Primary Causes of Statelessness
i. Conflicts and gaps between jus soli and jus sanguinis laws across different jurisdictions.
ii. Territorial alterations, state dissolution, or partitions where successor states fail to extend nationality to all residents.
iii. Discriminatory administrative deprivation of nationality based on ethnicity, religion, or political grounds.
iv. Being born in a region experiencing a total collapse of administrative governance or border changes before nationality laws are established.
b) Resulting Practical Protections Issues
i. Evidentiary hurdles in establishing a legal identity or securing birth certificates.
ii. The inability to obtain valid international passports or travel documents.
iii. Practical difficulties in securing civil marriage licenses or registering property.
iv. The absence of any home state to offer diplomatic protection or consular assistance abroad.
v. Vulnerability to indefinite detention or deportation orders, as no foreign country is under a legal obligation to receive them.
vi. Denial of domestic political rights, state-supported education, and access to regulated civil employment.
c) International Human Rights Treaties and Remedial Frameworks
The international community has established frameworks to reduce and manage statelessness through instruments like the Universal Declaration of Human Rights (UDHR) of 1948 and the UN Convention on the Reduction of Statelessness (1961). These instruments outline several core standards:
i. States should grant nationality to children born within their territory who would otherwise be stateless.
ii. International law prohibits the arbitrary deprivation of nationality based on race, ethnicity, religion, or political grounds.
iii. Nations are encouraged to preserve an individual's nationality unless they have committed grave offences against national security, and then only if an alternative citizenship exists.
iv. Descent and territorial birth must be utilized as grounding mechanisms to prevent intergenerational statelessness.
v. States are encouraged to regularize the status of de facto stateless persons by providing a path to formal de jure nationality based on long-term residence.
3. Aliens (Foreign Nationals)
The term ‘Alien’ refers to any person who physically resides within the territorial boundaries of a State but holds the nationality of a foreign country, or is stateless.
a) International Standards for the Rights of Aliens
Under the UN Declaration on the Human Rights of Individuals Who are not Nationals of the Country in Which They Live (1985), aliens are entitled to core human rights and protections, which states must respect alongside their domestic laws:
i. The right to life, liberty, and personal security.
ii. Protection against arbitrary or unlawful interference with privacy, family, home, or correspondence.
iii. The right to equality before municipal courts, administrative tribunals, and judicial bodies.
iv. The right to choose a spouse, marry, and establish a family unit.
v. Freedom of thought, conscience, opinion, and religion.
vi. The right to retain their language, culture, and ancestral traditions.
vii. The right to transfer abroad their legitimate earnings or savings, subject to national currency regulations.
viii. Freedom of expression, peaceful assembly, and the right to hold private property.
ix. Liberty of movement and freedom to choose a residence within the borders, subject to standard immigration controls.
x. Absolute protection from torture or cruel, inhuman, and degrading treatment.
b) Duties and Legal Restrictions Imposed on Aliens
While aliens enjoy human rights protections, they remain subject to specific restrictions under a state's territorial sovereignty:
i. Subjection to Local Laws: Aliens are required to comply with the criminal, civil, and administrative laws of their host country.
ii. Administrative Registration: States can require aliens to register with public authorities, report changes of address, and obtain valid visas or residency permits.
iii. Fiscal Obligations: Aliens cannot claim an exemption from ordinary local taxes, customs duties, or municipal fees levied within the territory.
iv. Temporary Allegiance: Aliens owe a temporary allegiance to the host state while residing within its borders, meaning they must refrain from acts of espionage, subversion, or interference in internal political affairs.
v. Eminent Domain and Expropriation: A State retains the right to expropriate property owned by foreign nationals for public purposes, provided the action complies with international law standards regarding non-discrimination and the payment of appropriate compensation.
vi. Expulsion and Deportation: A State retains the sovereign right to expel or deport an alien who violates local laws, breaches visa conditions, or threatens national security.
This authority was illustrated during the COVID-19 pandemic when the Government of India cancelled the visas of foreign nationals who had entered on tourist visas but violated domestic public health directives and laws regarding unlawful assembly, demonstrating a state's authority to enforce visa conditions.
VII. Conclusion
Nationality remains a foundational concept within public international law, acting as the mechanism that connects natural persons to the rights and duties established between sovereign states. While nations retain the domestic authority to define their citizenship criteria, international law frameworks work to manage conflicts like dual nationality and statelessness, balancing state sovereignty with the protection of global human rights.
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