The British government has confirmed that exiled Chagos islanders will not be allowed to return home until at least 2036.
The statement from the Foreign Office coincides with confirmation that the US military is to maintain its lease on Diego Garcia, the largest of the remote Indian Ocean group, for another 20 years.
Instead Chagossian exile communities, including those now living in Crawley in West Sussex, will be offered around £40 million in additional support.
Britain bought the Chagos Archipelago, which includes Diego Garcia, from Mauritius in 1965 before forcibly evicting the islands' 9,000 residents between 1967 and 1973.
Handed to the Americans on a lease basis in 1966 in return for a cut-price deal on Polaris nuclear missiles, it is now home to one of the world's biggest airfields. It effectively provides the US military with an unsinkable aircraft carrier from which to operate across the Indian Ocean.
Several thousand US military personnel are based on Diego Garcia, along with around 40-50 Royal Navy personnel.
It's also rumoured to have been a CIA's 'black site'. Manfred Nowak, a former UN Special Rapporteur on torture, has said that credible evidence exists supporting allegations that ships serving as 'black sites' have used Diego Garcia as a base.