Nguyen Van Thong, LL.M.
Thong Nguyen Law
ABSTRACT
This article examines the right of peoples to self-determination as a foundational principle of contemporary international law. It analyses its legal basis in treaty law and customary international law, as well as its development through international jurisprudence. Particular attention is given to the doctrinal limits of the right, especially in relation to territorial integrity and state sovereignty.
The article argues that while self-determination is firmly established as a legal norm, its scope remains constrained by structural ambiguities, including the indeterminate definition of “peoples” and the absence of a general right to unilateral secession outside colonial contexts.
KEYWORDS
Self-determination; International law; Peoples; Sovereignty; Territorial integrity; Secession
1. INTRODUCTION
The right of peoples to self-determination occupies a central yet contested position within contemporary international law. Recognized in foundational instruments such as the Charter of the United Nations and the International Covenants on Human Rights, it has evolved from a political principle into a legal norm of considerable significance.¹
However, despite its formal recognition, the precise scope and application of the right remain subject to ongoing debate. The absence of a universally accepted definition of “peoples,” combined with the competing principle of territorial integrity, has generated persistent doctrinal uncertainty.²
This article seeks to clarify the legal foundations of self-determination, examine its development in international jurisprudence, and identify its structural limitations within the framework of contemporary international law.
2. LEGAL FOUNDATIONS OF SELF-DETERMINATION
The legal basis of self-determination is firmly rooted in both treaty law and customary international law. Article 1(2) of the Charter of the United Nations identifies the development of friendly relations among nations based on respect for the principle of equal rights and self-determination of peoples as a core purpose of the organization.³
This principle is further elaborated in common Article 1 of the International Covenant on Civil and Political Rights and the International Covenant on Economic, Social and Cultural Rights, which affirm that all peoples have the right to freely determine their political status and pursue their economic, social, and cultural development.⁴
In addition, United Nations General Assembly Resolution 1514 (1960) on the granting of independence to colonial countries and peoples represents a critical moment in the transformation of self-determination into a legal entitlement, particularly in the context of decolonization.⁵
3. JURISPRUDENTIAL DEVELOPMENT
The development of self-determination as a legal doctrine has been significantly influenced by international jurisprudence. The International Court of Justice has addressed the principle in several key opinions, including the Namibia Advisory Opinion (1971), the Western Sahara Advisory Opinion (1975), and the Kosovo Advisory Opinion (2010).⁶
In these decisions, the Court acknowledged the legal relevance of self-determination, particularly in the context of decolonization. At the same time, it refrained from recognizing a general right to unilateral secession outside such contexts.⁷
The Kosovo Advisory Opinion is particularly notable in this regard. While the Court concluded that the declaration of independence did not violate international law, it avoided affirming the existence of a general entitlement to secession, thereby maintaining doctrinal ambiguity.⁸
4. DOCTRINAL LIMITS: TERRITORIAL INTEGRITY
A central tension in the law of self-determination lies in its relationship with the principle of territorial integrity. While self-determination emphasizes the rights of peoples, territorial integrity serves to preserve the sovereignty and unity of existing states.
This tension is reflected in United Nations General Assembly Resolution 2625 (1970), which affirms that self-determination should not be construed as authorizing actions that would impair the territorial integrity of states conducting themselves in compliance with the principle of equal rights.⁹
The concept of “remedial secession” has emerged as a possible exception, suggesting that secession may be justified in cases of serious oppression or denial of meaningful internal self-determination. However, this doctrine remains highly contested and lacks clear recognition as a rule of positive international law.¹⁰
5. CONCLUSION
The right of peoples to self-determination represents a foundational yet structurally complex element of contemporary international law. While it is widely recognized as a legal norm, its scope remains constrained by competing principles and unresolved doctrinal questions.
In particular, the lack of a clear definition of “peoples” and the absence of a general right to secession continue to limit its practical application. As a result, self-determination operates as both a legal entitlement and a site of ongoing interpretative contestation.
Future developments will depend on how international courts, state practice, and scholarly analysis address these tensions and refine the conceptual boundaries of the doctrine.
FOOTNOTES (ANH DÁN CUỐI BÀI)
- Charter of the United Nations (1945) art 1(2).
- Antonio Cassese, Self-Determination of Peoples (CUP 1995) 101.
- UN Charter (n 1) art 1(2).
- ICCPR and ICESCR (1966) common art 1.
- UNGA Res 1514 (XV) (1960).
- Western Sahara Advisory Opinion [1975] ICJ Rep 12.
- ibid.
- Kosovo Advisory Opinion [2010] ICJ Rep 403.
- UNGA Res 2625 (XXV) (1970).
- James Crawford, Brownlie’s Principles of Public International Law (9th edn, OUP 2019) 128.