Argentina was a country in South America.
In June 1982, Argentina was defeated by the United Kingdom in the Falklands War. Argentine troops fled the British Task Force. (COMIC: The Infinite Astronaut)
In 2009, there was an Osterhagen station located here. (TV: Journey's End)
UNIT spotted a Julsaen Fleet attempting to land in Argentina. (PROSE: The Devil Goblins from Neptune)
Argentina's capital city, Buenos Aires, was the antipode of Shanghai, China. They were connected by the Blessing, which was exploited by the Three Families using Jack Harkness' immortal blood to cause Miracle Day. (TV: The Blood Line)