Falkland Islanders still feel "under threat" 25 years after the Argentine invasion, the British territory's governor said.
Governor Alan Huckle said UK forces remained on the islands to deter "any thought of future aggression" against them.
Speaking ahead of the 25th anniversary commemorations of the British victory over Argentina in June 1982, Mr Huckle said the islands remained an "operational theatre".
"There is fear among islanders that it could happen again, there is a potential
threat at all times," he said. "The Argentine government is now a very different government to the Galtieri government back in 1982 but nevertheless it is still a government that is pressing its sovereignty claim and reducing the level of its co-operation with us.
"It has introduced fishing legislation which could affect us for example. People here are in a vulnerable position. There are 3,000 islanders and they feel under threat, however their confidence in the protection the British offer us allows us to thrive economically."
Relations between the islands' government and that of Argentina have cooled markedly since the current president Nestor Kirchner came to power in 2003.
Kirchner has repeatedly reasserted Argentina's claim to the islands but promised he would do so through peaceful means.
But Britain's top military man in the islands said he did not believe there was a greater threat to the islands this year.
Brigadier Nick Davies, Commander of British Forces in the South Atlantic, said he was confident he still had the resources to repel any invasion despite heavy commitments in Iraq and Afghanistan.
The 47-year-old ex-para commander who took on the post in November said: "I am here to deter any aggression. In simple terms my job is to make sure that any interference at any level - whether it is a small incursion right up to someone seeking to take control of the islands - that that is an extremely costly venture and also to make sure that I can prevent it."
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