Maldives Challenges UK–Chagos Deal, Seeks Sri Lankan Backing Amid Rising Tensions
A New Dispute Emerges in the Indian Ocean
A fresh diplomatic fault line is emerging in the Indian Ocean, as the Maldives signals its opposition to the United Kingdom’s agreement over the Chagos Archipelago and calls on Sri Lanka to follow suit.
According to diplomatic sources, Maldivian President Mohamed Muizzu has raised strong objections to the UK’s decision to proceed with arrangements involving Mauritius. The issue was reportedly discussed during high-level engagement with David Lammy, alongside formal written communications sent to London in November 2024 and January 2026.
Malé’s message is unambiguous: the Maldives believes its interests have been overlooked and is now seeking regional support to challenge the legitimacy of the deal.
The Contested Deal
The dispute centres on the UK’s agreement to transfer sovereignty of the Chagos Islands to Mauritius, while retaining a long-term lease over the strategically vital Diego Garcia, home to a joint UK–US military base.
Under the arrangement, Britain is expected to pay an annual leasing fee—reportedly averaging around £101 million—ensuring continued Western military presence in the region. The base plays a critical role in global security operations, particularly for the United States.
However, the Maldives argues that the agreement was reached without adequate consultation with regional stakeholders, particularly those with geographic and historical proximity to the archipelago.
Maldives’ Strategic Position
The Maldivian government has increasingly framed its position as both a legal and geopolitical claim. Officials in Malé maintain that the Chagos Islands fall within a broader regional context in which the Maldives has legitimate interests—if not outright entitlement.
In its formal objections, the Maldives criticised the UK for what it described as “exclusive bilateral engagement” with Mauritius, arguing that such an approach undermines multilateral norms and regional equity.
The issue is now being elevated domestically within the Maldives as a matter of national importance, with political messaging aimed at consolidating public support for a more assertive foreign policy stance.
Legal Complexities and International Rulings
The legal landscape surrounding the Chagos Islands is already complex. In 2022, proceedings linked to the International Tribunal for the Law of the Sea (ITLOS) reinforced Mauritius’ claim, aligning with earlier advisory opinions that Britain’s continued administration of the territory was inconsistent with international law.
Yet Maldivian officials suggest that new objections or legal filings could reopen aspects of the case, particularly if they introduce arguments based on regional rights or competing maritime claims.
Legal experts caution, however, that overturning or materially altering existing international findings would require substantial new evidence and a strong jurisdictional basis.
Sri Lanka Drawn Into the Equation
A significant dimension of the Maldives’ strategy is its effort to engage Sri Lanka. Colombo, given its geographic proximity and historical ties to Indian Ocean maritime routes, is viewed as a potential diplomatic ally.
Maldivian policymakers are reportedly encouraging Sri Lanka to publicly question or decline recognition of the UK–Mauritius arrangement. Such a move, if realised, could complicate the regional consensus and introduce a new layer of diplomatic friction.
For Sri Lanka, the issue is delicate. Balancing relations with the UK, Mauritius, and the Maldives—while safeguarding its own strategic interests—requires careful calibration.
Security Concerns and Speculation
The Chagos Islands’ strategic importance has also given rise to security-related speculation. Unverified claims have circulated suggesting potential threats to the military base, including alleged missile activity involving regional actors such as Iran.
While no credible evidence has substantiated such incidents, the narratives underscore the heightened geopolitical sensitivity surrounding the archipelago. Any escalation—real or perceived—could have implications far beyond the immediate dispute.
Could This Turn Military?
Despite increasingly assertive rhetoric, analysts remain sceptical about the likelihood of any military action by the Maldives. The country lacks the capability to project force in such a manner, and any attempt to do so would risk severe international repercussions.
Moreover, involvement by major powers such as the United States would almost certainly be guided by strategic stability considerations rather than alignment with new territorial claims.
In practical terms, the dispute is far more likely to play out in diplomatic and legal arenas than through confrontation.
A Region in Flux
The Chagos issue highlights a broader shift in Indian Ocean geopolitics, where smaller states are increasingly willing to assert their positions in the face of decisions made by larger powers.
For the Maldives, this represents both a test of diplomatic resolve and an opportunity to redefine its regional role. For the UK, it presents a challenge in managing post-colonial legacies while maintaining strategic alliances.
The Maldives’ challenge to the UK–Chagos deal introduces a new and complex dimension to an already contentious issue. By seeking support from Sri Lanka and signalling possible legal action, Malé is positioning itself as an active stakeholder in the future of the archipelago.
Whether this effort will gain traction remains uncertain. What is clear, however, is that the question of sovereignty over the Chagos Islands is far from settled—and may yet evolve into a broader regional dispute with significant geopolitical implications.