Argentina has reignited the long-standing row over the Falkland Islands with Britain, calling for negotiations over the future of the disputed islands in the South Atlantic.
The appeal, by Argentine President Christina Fernandez de Kirchner, was made in an open letter printed in full-page advertisements in British newspapers on Thursday.
In it, she urges British Prime Minister David Cameron to abide by a 1965 UN resolution to "negotiate a solution" over the islands and accuses Britain of having taken the islands from Argentina in a "a blatant exercise of 19th-century colonialism."
Fernandez de Kirchner chose January 3, one of the key dates in the long history of the dispute, to make her appeal, published in the Guardian and Independent newspapers.
A spokesman for the Foreign Office in London said there could be no negotiations on the sovereignty of the Falklands "unless and until such time as the islanders so wish."
A referendum on the islands' political status, initiated by the pro-British Falkland Islands government, is to be held in March.
Argentina claims that it inherited ownership of the islands from Spain, and that Britain occupied the islands by force on January 3, 1833.
Britain and Argentina went to war over the remote islands, which are called the Malvinas Islands by Argentina, in 1982. The conflict claimed the lives of 655 Argentinian soldiers and 255 British military personnel.
Oil has recently been discovered around the islands, inhabited by just 3,000 people.