Argentina unilaterally pulled out of the deal with the UK to share any profits in oil found down round the Falklands. I don't know why but I think what you are seeing here is a country that has realised it did somethine stupid, the UK now look to reap all the benefits so is making these moves in order to get some share of the oil.
If there was no oil down there either Argentina wouldn't give a monkeys or we would have given them back.
The thing is both countries claims to the Falklands is arguable if you go back in history with the French also being able to make a claim.
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