Some previous reports on the Argentine effort to acquire new planes said that their defence priority involved their northern frontier region, with a particular focus on air support for potential counter-insurgency operations. They do have Pucaras which are intended for this role, but they also want something faster and more sophisticated as well to try to cover the big empty spaces of their frontier districts. So far as I understand their biggest concern is to have the potential to deal with another break down in internal stability rather than operations against neighbouring states.
They've been trying to buy new planes since the Falklands War, without luck due to lack of money. I will believe that they are getting new planes from South Korea when I see them actually arrive.
Do the Koreans like corned beef?