For more than a year, renewed rhetoric between the two countries over the islands has escalated to a fever pitch, and Argentina's state-run Telam news agency offered an unflinching look Monday at the South American country's take on Thatcher's legacy.
Articles described her as "a symbol of war," "an expression of inequality" and "a great destroyer."
Britain in Europe
European leaders paid tribute to Thatcher's role in shaping Britain's place in Europe.
European Commission President Jose Manuel Barroso said: "She was without doubt a great stateswoman ... and a circumspect yet engaged player in the European Union. She will be remembered for both her contributions to and her reserves about our common project.
"She signed the Single European Act and helped bring about the Single Market. She was a leading player in bringing into the European family the Central and Eastern European countries which were formerly behind the Iron Curtain."
German Foreign Minister Guido Westerwelle said Thatcher "changed Britain permanently. In the same way, she leaves European and world history a great legacy.
"Margaret Thatcher counted among the very few people who you knew, even within their lifetime, had helped write history. She always had her own unmistakeable, pithy and distinctive opinion."
French President Francois Hollande said that Thatcher's relationship with France "was always frank and honest."
She had established "a constructive and fruitful dialogue" with former President Francois Mitterrand and worked to strengthen the ties between Britain and France, he added.
Herman Van Rompuy, president of the European Council, said Thatcher "was a remarkable personality and one of the most influential European leaders of her time."
U.N. Secretary General Ban Ki-moon said the world owed a great deal to Thatcher's leadership.
"She was a pioneering leader for her contribution to peace and security, particularly at the height of the Cold War," he said.
"She was also a great model as the first woman prime minister of the United Kingdom, who not only demonstrated her leadership but has given such great hope for many women for equality, gender equality in Parliament."
NATO Secretary-General Anders Fogh Rasmussen said Thatcher "was an extraordinary politician who was a staunch defender of freedom, a powerful advocate of NATO and the transatlantic bond."
Israeli Prime Minister Benjamin Netanyahu said Thatcher had inspired a generation of political leaders.
"She was truly a great leader, a woman of principle, of determination, of conviction, of strength; a woman of greatness," he said. "She was a staunch friend of Israel and the Jewish people."
Canadian Prime Minister Stephen Harper said the world had lost a "giant among leaders" with Thatcher's passing.
She "had that rarest of abilities to herself personify and define the age in which she served. Indeed, with the success of her economic policies, she defined contemporary conservatism itself," he said.