Chagos Archipelago island used as a UK–US military base since the 1970s
The UK government has shelved legislation to transfer sovereignty of the Chagos Islands to Mauritius due to lack of US support. Former US President Trump has opposed the deal, calling it a "big mistake." The agreement includes a 99-year lease of the Diego Garcia military base to preserve UK-US operations. UK-US relations have strained over the Iran conflict, affecting progress.
The UK has halted its plan to transfer sovereignty of the Chagos Islands to Mauritius, citing US opposition. The treaty was signed last year but has not been ratified due to political and diplomatic hurdles, including US support withdrawal. The issue remains unresolved as UK and US negotiations continue.
The United States is evaluating a direct purchase of the Chagos Islands from Mauritius as UK plans to cede sovereignty stall. A plan would sidestep the UK and secure the Diego Garcia base, while political opposition in Britain and exile Chagossan leaders push back. Several options are being discussed, with Trump officials weighing risks of aligning with Mauritius and China concerns.