Argentina
Argentina is a country on the south end of South America. It is bordered by Chile, Brazil, and Uruguay. It contains part of the Andes Mountains and claims sovereignty over part of Antarctica. Buenos Aires is the capital of Argentina.
Fiction
Generation 1
Marvel Comics continuity
In order to to get the population of Earth to accept him as its new leader, Starscream decided to destroy three of its largest cities. Among these was Buenos Aires. Both the Autobots and Decepticons sought to stop him, and from this it was decided that Fortress Maximus and Soundwave would jointly lead the Buenos Aires rescue attempt.
Starscream went to Buenos Aires after the other two, having already taken out all the Decepticons and Autobots waiting for him there. The ones at Buenos Aires weren't any more difficult. After killing the first batch, Starscream landed at Avenida Nueve de Julio, where he addressed the humans until more Transformers showed up to stop him. All of them but Fortress Maximus perished. The giant Headmaster's life was saved firstly because he was partially organic, therefore less sensitive for the Underbase's powers, and secondly because Starscream realized keeping an eye on the proceedings aboard the Ark was more urgent, so he had no time to finish off his last opponent and left for space. Buenos Aires was thus spared. Dark Star
Live-action film series
IDW Revenge of the Fallen comics
Hot on Demolishors trail, Sideswipe made his way from Uruguay into Argentina. Their first confrontation in the country occurred at Ezeiza International Airport, where they were soon joined by Ironhide. Ironhide felt responsible for Sideswipe and hoped to convince him to stop his mad pursuit before the other Autobots had to take him out. Sideswipe was not to be moved by reason though, which pleased Demolishor, who challenged the two Autobots to follow him to a new battlefield: Buenos Aires.
Demolishor went to the city area specifically to optimize the damage and death toll of the battle. Inorhide knew this and didn't want Sideswipe to follow, but the younger warrior wouldn't listen. After Demolishor destroyed the obelisk at Avenida Nueve de Julio, Sideswipe caught up with him and attacked, though wasn't any more effective than back at the airport. In the end, neither would win as the Argentine Air Force arrived and unleashed a barrage of missiles on both. Sideswipe would have died there if not for the arrival of the other Autobots and the United States military, who asked the Argentine Air Force to stop shooting and whose numbers scared away Demolishor, presumably out of the country. Tales of the Fallen #2
