''No one should be in any doubt that as far as the British Government is concerned, it is Falkland Islanders who will determine the sovereignty of the islands. I believe their view will be respected by this House, this country and by the world.''

Earlier this month Foreign Office minister David Lidington said Falkland Islanders were being subjected to increasingly aggressive behaviour, threats and military rhetoric from Argentina.

Mr Lidington said Argentina had become increasingly hostile to the islanders, preventing free trade, stopping cruise ships bearing Falkland Islands flags docking in Argentinian ports and preventing flights using its air space.

He also criticised a recent advert in which an Argentinian athlete was seen training on a Falklands Island's war memorial.

"(Argentina's) behaviour remains aggressive to the islanders. The actions displayed by the Argentinian government are not those of a responsible power on the world stage with threats and military rhetoric."

"This government will offer unequivocal support for the islanders, protecting their rights and wishes just as we did 30 years ago," he said.

Three decades after Margaret Thatcher sent 27,000 troops and more than 100 ships to expel Argentinian invaders, Buenos Aires continues to set its sights on claiming the territory it calls Las Malvinas.

The Foreign Office is concerned Argentina could use the Olympics could become a platform for a protest. It is feared that athletes from the country could put on a black power-style protest, similar to the one staged by two African-American medal winners at the 1968 Mexico City Games.

A referendum is due to be held on sovereignty in the first half of 2013.

Previously the Falkland Islands Government also said it hoped the vote would send a firm message to Argentina that islanders want to remain British.

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Falkland Islands: behaviour of Argentina is unacceptable, says David Cameron