UK cedes Chagos Island sovereignty to Mauritius, retains Diego Garcia airbase ReutersKey U.S. Military Base Secured as U.K. Returns Disputed Islands to Mauritius The Wall Street JournalBritain agrees Chagos Island sovereignty deal with Mauritius CNNA timeline of the UK’s history with the Chagos Islands The GuardianUK gives sovereignty of the long-contested Chagos Islands to Mauritius. A key US base remains The Associated Press