Mr Quirno argued that for Britain, the Falklands Islands were not an “expression of its identity” given the size of its population compared to the roughly 1,200 British troops deployed there.
“This ratio demonstrates the tactical nature of the occupation,” he wrote, describing the archipelago as a “strategic enclave from which it safeguards military, economic, and geopolitical interests in one of the most important regions of the Southern Hemisphere.”
He also denounced the Britain-backed plans to develop a Falklands offshore oil field, which Argentina has declared unlawful.
Mr Qurino said it was “based on fraudulent licenses issued by illegitimate authorities”.
The foreign minister said it was his duty to make the case for the Falklands returning to Argentine rule.
“Every day I renew that mandate, aware that few responsibilities can honour a foreign minister more than to carry the voice of this just cause to the world and defend it with the same firmness with which millions of my compatriots embrace it.
“Therein lies one of the greatest honours and commitments an Argentinian can assume. That is my commitment. By history, by law and by conviction, the Falkland Islands are Argentine.”
Argentina has long disputed the sovereignty of the Falkland Islands – which it refers to as “the Malvinas” – despite the British claim to them dating back to 1690.