The Falkland Islands will hold a referendum on its "political status" in a bid to end the dispute with Argentina over the archipelago's sovereignty.
The islands' government made the announcement ahead of the anniversary marking 30 years since the end of Argentina's 74-day occupation in 1982.
It said it wanted to send a firm message to Argentina that islanders want to remain British.
The UK prime minister said Britain would support the result of the vote.
The referendum will be organised by the Falkland Islands government and will take place in the first half of next year.
After the last invasion, Argentina set about eliminating all traces of Britishness from the islands, they had plans to import thousands of settlers and "repatriate" islanders to the UK or insist that those that stayed learned Spanish, they succeeded in replacing the currency and forcing motorists onto the wrong side of the road before the Islands were reclaimed.