Introduction
International law comprises rules and principles governing relations among states and other entities recognised by the international community. Subjects of international law are entities that possess rights and duties under it and have the capacity to claim or enforce those rights at the international level.
Traditionally, only states were subjects. With the evolution of international relations, international organisations, individuals and certain other entities have also acquired international legal status.
Meaning of Subjects of International Law
A subject of international law is an entity with international legal personality — the capacity to possess rights and duties under international law and, in appropriate cases, to enforce them through international procedures.
In simple terms, subjects are those entities that international law recognises as holders of legal rights and obligations.
Examples
- A state has the right to sovereignty and the duty to respect the sovereignty of other states.
- The United Nations has rights and duties as an international organisation.
- Individuals may be held responsible for international crimes such as genocide and crimes against humanity.
Test of International Legal Personality
An entity may be considered a subject of international law if it fulfils the following conditions:
- Rights and Duties: It must have the ability to possess rights and duties under international law.
- Legal Claims: It must have the capacity, to some extent, to bring or face international legal claims or participate in international legal proceedings.
- Recognition: Its international legal status must be recognised under international law, treaties or the practice of states.
However, all entities do not enjoy the same level of legal personality. States generally have full international legal personality, while most non-state entities have only limited or functional legal personality.
Primary Subjects of International Law: States
States are the original and primary subjects of international law. They enjoy full international legal personality, meaning they have the capacity to possess rights and duties and to participate independently in international relations.
Essential Elements of a State (Montevideo Convention, 1933)
According to the Montevideo Convention, a state must have four essential elements:
| Essential Element | Explanation |
|---|---|
| Permanent Population | A group of people who normally live in the state. |
| Defined Territory | A specific geographical area over which the state exercises authority. |
| Government | An organised government to administer the state. |
| Capacity to Enter into Relations with Other States | The ability to conduct independent international relations. |
Rights of States
- Sovereignty and independence.
- Territorial integrity.
- Right of self-defence.
- Sovereign equality with other states.
- Right to enter into treaties.
Duties of States
- Respect the sovereignty and independence of other states.
- Fulfil international treaty obligations.
- Refrain from the unlawful use of force.
- Respect fundamental human rights.
- Follow the rules of international law.
Examples: India, the United States, France and Japan.
Limited Subjects of International Law
These entities possess international rights and duties only to the extent recognised by international law; their personality is functional or partial.
International Organisations
Created by treaties between states to pursue common objectives. Their legal personality is determined by their constituent instruments, functions and the recognition accorded by states.
Examples: United Nations, WHO, ILO, WTO.
In the Reparation for Injuries case (1949), the ICJ held that the United Nations possesses international legal personality and can bring international claims within the scope of its functions.
Individuals
Modern international law recognises individuals as limited subjects. They enjoy certain rights (life, liberty, protection from torture, fair trial, and human rights guarantees) and can be held personally accountable for international crimes (genocide, war crimes, and crimes against humanity).
The International Criminal Court prosecutes individuals for such crimes. Such entities have only those international rights and duties that are recognised or granted to them; they do not enjoy the full legal status of states. For example, the United Nations has international legal personality, but its powers are limited to the purposes and functions given to it under the UN Charter.
Non-Governmental Organisations (NGOs)
NGOs lack full international legal personality, but it is worth remembering that they participate via consultative status (e.g., with ECOSOC) rather than as direct subjects of international treaties. They nevertheless influence the development and application of international law through advocacy, monitoring, humanitarian work and participation in international forums.
Examples: Amnesty International and the International Committee of the Red Cross (which enjoys a special status under international humanitarian law).
The International Committee of the Red Cross (ICRC) is unique because, despite being a private Swiss NGO under domestic law, it is explicitly mandated by international Geneva Conventions, giving it a sui generis status close to an intergovernmental body in times of armed conflict.
Special Entities Under International Law
Certain entities are recognised under international law as having a special or limited legal status because of their history, functions or international recognition. They include:
- Holy See: Maintains diplomatic relations with several states and enjoys international legal personality.
- Sovereign Order of Malta: Enjoys a special international status and maintains diplomatic relations with many countries.
- National Liberation Movements: May receive recognition under international law, particularly in the context of the right to self-determination.
- Belligerents and Insurgents: Under certain conditions, they may acquire limited rights and duties under international humanitarian law.
These entities do not enjoy the same legal status as states, but they may have certain rights and responsibilities under international law.
Theories Regarding Subjects of International Law
A. Traditional Theory
According to the traditional view, only states are the subjects of international law. Individuals and other entities are considered merely objects of international law because they do not have independent rights and duties under it.
B. Modern Theory
According to the modern view, states remain the primary subjects of international law, but international organisations, individuals and certain special entities are also recognised as subjects. However, their legal rights and duties differ according to their nature and functions.
Important Judicial Decisions
1. Reparation for Injuries Suffered in the Service of the United Nations (1949)
The International Court of Justice (ICJ) recognised that the United Nations has its own international legal personality and can bring international claims.
2. Nottebohm Case (1955)
The ICJ explained the importance of a genuine connection between an individual and the state granting nationality.
3. Barcelona Traction Case (1970)
The ICJ recognised that certain obligations, known as erga omnes, are owed by every state to the international community as a whole, such as the prohibition of genocide and racial discrimination.
Conclusion
The subjects of international law are no longer limited to states. Today, international organisations, individuals and certain special entities are also recognised as subjects of international law. However, states remain the primary subjects because they enjoy the fullest legal rights and duties. Other entities have limited rights and responsibilities according to their roles. This development shows that international law has expanded to protect human rights, promote cooperation among nations and hold individuals accountable for international crimes.
