The United Kingdom has paused its plan to transfer control of the Chagos Islands to Mauritius following strong criticism from U.S. President Donald Trump, raising new uncertainty over the future of a key military base in the Indian Ocean.

British Prime Minister Keir Starmer’s government has not abandoned the agreement but acknowledged delays in advancing the proposal through Parliament. Officials indicated there is insufficient time in the current legislative session to formalize the deal into law, and it is unlikely to be included in the upcoming parliamentary agenda.

The proposed agreement would allow the United Kingdom to transfer sovereignty of the Chagos Islands to Mauritius while maintaining access to the strategically significant Diego Garcia base through a long-term lease. The base, jointly used by the United States and the United Kingdom, plays a critical role in global military operations, including missions across Asia and the Middle East.

U.S. support has been central to the deal, but Trump publicly opposed the agreement in early 2026, describing it as a major strategic mistake. He also emphasized the importance of retaining control over Diego Garcia, citing its potential role in future military operations. British officials reiterated that the deal’s primary objective is to ensure the long-term operational security of the base while continuing discussions with both Washington and Mauritius.

The sovereignty dispute dates back decades, with Mauritius asserting its claim over the islands and international bodies urging the UK to return control. Despite growing diplomatic pressure, the future of the agreement now depends on continued negotiations between the involved parties.