Tensions flare over Falkland Islands - CNN.com It does sound like Argentina is acting in a colonial fashion, to me. The people of the Falklands are of British descent and have self-determined they want to be ruled by the British government. South American Nationalism has been reaching a fever pitch the last decade or so. I guarantee they want no part of the British military. They'll get as nasty as they have to.
All those "allies" of Argentina are also allies with the U.S who supports Great Britain. Good luck with that.