Mauritius awaits with anticipation the future of the agreement signed with Britain in October 2024, which aims to resolve the long-standing dispute over the Chagos Archipelago, comprising more than 60 islands in the Indian Ocean. Although Britain and Mauritius are the two countries expected to determine the fate of this agreement, a third actor, the United States, holds the power to finalize this issue, particularly under President Donald Trump’s administration, which may represent a significant shift in certain matters compared to his predecessor Joe Biden.
While Trump stated during a meeting with British Prime Minister Keir Starmer on February 27, 2025, that he might accept the Chagos agreement after further discussions and obtaining the necessary details; this declaration reflects that the final decision has not yet been made, and Trump requires additional consultations before arriving at a conclusive decision amid significant opposition from many Republican Party members.
In this context, several questions arise: Will Trump proceed with recognizing the agreement signed between Britain and Mauritius despite substantial Republican objections? How can Mauritius balance its sovereign rights over the Chagos Archipelago against U.S. ambitions to maintain a military base there, which is a crucial part of its strategy in the Indian Ocean?
Roots of the Crisis:
The Chagos Archipelago is located in the southern Indian Ocean and was part of the Mauritius colony under British control since the early 19th century. The roots of this crisis trace back to 1965 within what is termed the “Chagos deal.” Although Mauritius gained independence in 1968, it was not complete like most African nations; rather, it was conditional upon the separation of the Chagos Archipelago and its annexation by Britain, to establish a military base in partnership with the United States.
During this separation, the original inhabitants of the archipelago were forcibly displaced to other areas without any compensation or legal guarantees. While Mauritius has been claiming its right to reclaim the archipelago, Britain has insisted on its sovereignty over it. In 2019, the International Court of Justice issued a legal advisory opinion affirming that Britain must withdraw its control over the Chagos Archipelago and return it to Mauritius; this gave the issue an international legal dimension.
As demands to resolve this dispute escalated, several rounds of negotiations between Mauritius and Britain were held, starting in 2022, ultimately leading to an agreement in October 2024 aimed at resolving the crisis. The agreement stipulates that Britain acknowledges Mauritius’s sovereignty over the Chagos Archipelago, including Diego Garcia, which houses a military base, and that Britain provides a financial aid package to Mauritius, in addition to allowing it to launch a resettlement program for the displaced citizens in the Chagos Islands. However, the agreement states that Britain will be delegated to exercise sovereignty rights over Diego Garcia for an initial period of 99 years.
Republican Reservations:
The importance of the Chagos Islands to the United States lies in the fact that the archipelago contains Diego Garcia, which hosts a strategic military base run by Washington in partnership with Britain. This base has played a vital role in many significant military operations conducted by the United States in the Middle East, such as the wars in Iraq and Afghanistan. Furthermore, the Chagos Islands possess a critical geographical location in the Indian Ocean, enhancing their strategic value to Washington, making the maintenance of military presence there crucial for securing its geopolitical interests in the region.
Despite former President Biden welcoming the agreement between Mauritius and Britain and deeming it historic, concerns within the Republican Party about this agreement arise from several factors, including:
- Impact on U.S. defense strategy in the Middle East: The United States views Diego Garcia as a vital military base that bolsters its naval and air power in the Middle East; thus, some Republican members believe that any change in the island’s sovereign status might directly affect U.S. defense strategy in the region and pose a threat to American forces’ presence there. Hence, there is a sentiment among some Republicans that Washington’s stance on this issue should be guided not only by legal or diplomatic matters but also by military interests that ensure its continued strength in the area.
- Concerns about Iranian influence: Washington fears the strengthening of Iranian influence in the region, as some senior Republican officials have urged Trump to obstruct the Chagos agreement, fearing it may facilitate Iranian espionage on U.S. military operations in the area. This anxiety is heightened by Mauritius’s ongoing negotiations with Tehran regarding hosting branches of Iranian universities, raising concerns that these branches could be exploited for spying activities targeting the Diego Garcia base. In addition, there are American fears regarding the rising influence of the Houthis and their capability to target ships in the Indian Ocean, underscoring the importance of the U.S. solidifying its military presence in this strategic area.
- China’s ambitions to dominate the Indian Ocean: China seeks to establish its control over the Indian Ocean, raising American concerns that Beijing could solidify its presence in the Chagos Archipelago if Britain were to relinquish its sovereignty over it. Although Mauritius’s Prime Minister, Navin Ramgoolam, has asserted that the agreement signed with London is unrelated to China, indicators suggest that relations between Port Louis and Beijing are growing, with Ramgoolam calling in January 2025 for enhanced cooperation with China, at a time when Mauritius was one of the first countries to sign a free trade agreement with Beijing.
Return to Negotiations:
Mauritius considered the signing of the agreement with Britain a historic achievement; however, the political changes following the elections held in Mauritius in November 2024, which resulted in Navin Ramgoolam becoming Prime Minister, led to a shift in positions. Ramgoolam criticized the agreement, asserting that Britain must fully acknowledge Mauritius’s ownership of the Chagos Islands and emphasized the need to link the lease to inflation rates and take currency exchange rates into account; this reflects a change in Mauritius’s official stance on the agreement.
Conversely, the Chagos agreement faces internal opposition in London, citing concerns over the £18 billion cost Britain would incur for the base’s lease and the implications of handing this strategic area over to new actors, which could affect Britain’s influence in the Indian Ocean.
These changes suggest a potential return to negotiations regarding the agreement, with a focus on several key points, chiefly Mauritius’s desire to reopen discussions on the leasing terms of Diego Garcia and the lease duration, alongside security issues related to the restricted areas surrounding the base to minimize surveillance risks.
If negotiations resume, they are likely to be highly complex due to the current Mauritius government’s insistence on its full sovereignty over the Chagos Islands, the U.S. desire to maintain its military power and political influence in the Indian Ocean region, and the internal opposition in Britain to this agreement.
The Trump administration is expected to apply diplomatic and economic pressure on Mauritius and Britain to prevent any change in the status of Diego Garcia, as one of the crucial points in the agreement is the defined lease duration of 99 years, which is pivotal for Washington to ensure its control over the military base, especially amid tensions with China and Iran.
Should Mauritius insist on reevaluating the lease duration, such a change could impact relations between the United States and Britain on one side, and between the United States and Mauritius on the other. This insistence could lead to the continuation of the crisis during Trump’s second term, particularly if negotiations fail to yield a satisfactory resolution for all parties. In this case, political and economic pressures on Mauritius are likely to persist, while Washington will remain on alert until a viable settlement is achieved.
In conclusion, it can be said that the conflict over the Chagos Islands reflects the complex contradictions between security interests and adherence to sovereignty standards for African nations. Despite Mauritius’s success in rallying international support for reclaiming its sovereignty over these islands, the continued presence of the U.S. military on Diego Garcia represents a significant obstacle to diplomatic efforts aimed at ending this dispute and reaching a final settlement that affirms Mauritius’s sovereignty over its entire territory.
