The Sabah Question: Arbitration Ruling, Annulment, and the Road Ahead

Sabah Arbitration Case: Historical Claims, Court Rulings, and Continuing Debate

A French arbitration court previously ordered the Government of Malaysia to pay US$14.92 billion in compensation to the heirs of the Sultanate of Sulu in connection with the long-running dispute over North Borneo, now known as Sabah.

Although traditional sultanates no longer exercise sovereign powers in the modern Philippine state, the family of the 35th Sultan of Sulu, Muedzul-Lail Tan Kiram, has maintained that rights over North Borneo were transferred in 1957 during the administration of former President Diosdado Macapagal. The claim was later referenced in Memorandum Order No. 427 (1974), which reaffirmed the Philippine government’s historical position on Sabah.

The legal action before the French arbitration tribunal was initiated by descendants of the late Jamalul Kiram III, who had asserted proprietary rights over the territory based on the 1878 agreement between the Sultanate of Sulu and representatives of a British company that later administered North Borneo. In 2022, the arbitration court awarded US$14.92 billion in damages to the heirs, citing Malaysia’s alleged failure to continue annual payments stipulated under the historical agreement.

However, the ruling faced immediate legal challenges. Malaysian authorities moved to annul and block enforcement of the award in various jurisdictions, including France, Spain, and Luxembourg. In 2023, a French court set aside the arbitration award, effectively revoking its enforceability. Malaysia has consistently maintained that the arbitration process was illegitimate and that Sabah is an integral part of its sovereign territory under international law.

Historical Background

The Sultanate of Sulu was once among the most influential maritime powers in Southeast Asia, with territories extending across parts of Mindanao, the Sulu Archipelago, and North Borneo. During the Spanish colonial period, Spain consolidated various islands into what became known as “Las Islas Filipinas,” recording territorial arrangements that continue to influence historical debates today.

The Philippine claim to Sabah was formally pursued during the presidency of Diosdado Macapagal in the 1960s, when diplomatic efforts were made to assert sovereignty over the territory. While the issue remains dormant in active diplomatic negotiations, it has never been formally abandoned by the Philippine government.

Public Sentiment and Government Position

The arbitration ruling initially sparked public discussion in both the Philippines and Malaysia, with some sectors viewing it as symbolic recognition of historical grievances. Others cautioned that arbitration concerning private heirs differs from state-to-state territorial claims.

The Philippine government has maintained that the Sabah claim remains a matter of national interest, but it has also emphasized adherence to peaceful dialogue and international law. Malaysia, for its part, continues to reject any challenge to its sovereignty over Sabah.

Despite the revocation of the arbitration award, the case has revived conversations about history, identity, and territorial rights. For many Filipinos—particularly descendants of the Sultanate of Sulu—the issue represents not only a legal dispute but also a matter of heritage and historical recognition.

As diplomatic channels remain the recognized avenue for resolving territorial concerns, observers note that any future developments will depend on bilateral engagement, regional stability, and evolving international legal frameworks.

The Sabah question, deeply rooted in colonial-era agreements and regional geopolitics, continues to evoke strong sentiments—balancing national aspirations with the realities of modern state sovereignty.