Personally I think Aeronut is being a bit po-faced about this. Its pretty obvious that Grabber was using irony in choosing the Spanish version.
It also points up the fact often missed or ignored by the Argentines that
Las Malvinas is just the Spanish for
Les Malouines (from St Malo), so called because the original colonisers were fishermen from the St Malo region , so neither Brits nor Spanish! Maybe the fairest thing would be to offer the islands (and the oil) to the French - I'm sure nobody would argue with that!
Dons helmet and retires to a VERY safe distance