Legal Implication of the 2025 UK-Mauritius Agreement on the Chagos Archipelago Sovereignty Dispute and the Protection of Chagossian Rights


Date Published : 4 June 2026

Contributors

Dhiazra Yoriko Chairunnisa

International Law, Lampung University, 35145, Indonesia
Author

Ahmad Syofyan

International Law, Lampung University, 35145, Indonesia
Author

Rehulina

International Law, Lampung University, 35145, Indonesia
Author

Proceeding

Track

General Track

License

Copyright (c) 2026 Dhiazra Yoriko Chairunnisa; Ahmad Syofyan; Rehulina;

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Abstract

References

[1]. J. Alkatout, “Diego Garcia remains a dark British-American secret in the Indian Ocean,” Al Jazeera, Oct. 17, 2024. Accessed: Oct. 9, 2025.
[2]. S. Allen, The Chagos Islanders and International Law. Oxford, UK: Hart Publishing, 2014.
[3]. O. Bowcott and J. Borger, “UK suffers crushing defeat in UN vote on Chagos Islands,” The Guardian, May 22, 2019.
[4]. J. Dunne, “Reparative Justice and the Chagossians,” Human Rights Law Review, 2021.
[5]. UK Government, “Foreign Secretary’s statement,” Oct. 7, 2024.
[6]. House of Lords International Agreements Committee, Report on the UK–Mauritius Chagos Islands Agreement, Jun. 2025.
[7]. International Center for Transitional Justice, “U.K. Signs Agreement to Hand Sovereignty of the Disputed Chagos Islands to Mauritius,” May 22, 2025.
[8]. International Court of Justice, Legal Consequences of the Separation of the Chagos Archipelago from Mauritius in 1965, Advisory Opinion, 2019
[9]. International Court of Justice, Legal Consequences of the Separation of the Chagos Archipelago from Mauritius in 1965, Advisory Opinion, para. 178, 2019.
[10]. International Tribunal for the Law of the Sea (ITLOS), Maritime Delimitation in the Indian Ocean (Mauritius v. Maldives), Judgment, 2021.
[11]. L. Jeffery, Chagos Islanders in Mauritius and the UK: Forced Displacement and Onward Migration. Manchester, UK: Manchester University Press, 2011.
[12]. N. Kralev, Chagos: Decolonisation and International Law. London, UK: Routledge, 2020.
[13]. S. Lalonde, “The Chagos Advisory Opinion and International Law,” International & Comparative Law Quarterly, 2020.
[14]. “Legal Consequences of the Separation of the Chagos Archipelago from Mauritius in 1965,” ICJ Reports, Advisory Opinion, 2019.
[15]. ITLOS Special Chamber, Maritime Delimitation in the Indian Ocean (Mauritius v. Maldives), Preliminary Objections, 2021.
[16]. Treaty between the United Kingdom of Great Britain and Northern Ireland and the Republic of Mauritius on the Chagos Archipelago & Diego Garcia, signed May 22, 2025, art. 1.
[17]. UK–Mauritius Joint Statement, UK Government, Oct. 3, 2024.
[18]. UN General Assembly Resolution 1514 (XV), Declaration on the Granting of Independence to Colonial Countries and Peoples, 1960.
[19]. UN General Assembly Resolution 2625 (XXV), Declaration on Principles of International Law concerning Friendly Relations, 1970.
[20]. UN General Assembly Resolution 73/295, Request for an Advisory Opinion on the Legal Consequences of the Separation of the Chagos Archipelago from Mauritius in 1965, 2019.
[21]. UN Human Rights Experts, “UN experts say Mauritius–UK deal fails to guarantee rights of Chagossians,” Jun. 10, 2025.
[22]. UN Human Rights Experts, “Deal Fails to Guarantee Rights of Chagossians,” Jun. 10, 2025.
[23]. United Nations Mauritius, “Historic Agreement on Chagos,” May 22, 2025.
[24]. D. Vine, Island of Shame: The Secret History of the U.S. Military Base on Diego Garcia. Princeton, NJ: Princeton University Press, 2009.
[25]. D. Vine, Island of Shame: The Secret History of the U.S. Military Base on Diego Garcia, revised ed., Princeton University Press, 2019.

Downloads

How to Cite

Dhiazra Yoriko Chairunnisa, D. Y. C., Ahmad Syofyan , A. S. ., & Rehulina, R. (2026). Legal Implication of the 2025 UK-Mauritius Agreement on the Chagos Archipelago Sovereignty Dispute and the Protection of Chagossian Rights. Lex Recente: Proceedings of the International Conference on Contemporary Law, 2(1), 57-67. https://conference.uii.ac.id/isc/paper/view/670