LONDON — Two women born on the Chagos Islands are seeking to take the British government to court over a proposed deal to transfer sovereignty of the disputed Indian Ocean archipelago to Mauritius.

US President Donald Trump has indicated he would be prepared to back Prime Minister Sir Keir Starmer's deal to hand over sovereignty of the Chagos Islands to Mauritius. The agreement includes a plan ...

In recent years the United Nations and its top court have urged Britain to return the Chagos to Mauritius. In a non-binding 2019 opinion, the International Court of Justice ruled that the U.K. had ...