What purpose was served by Argentina's occupation of South Georgia immediately prior to the invasion of the Falklands? The famously elaborate operation, involving marines masquerading as scrap metal merchants and obscure diplomatic slights would appear to have achieved nothing of value. A miniature side show compared to the main Falklands war. What did Buenos Aires intend it to achieve?
If it was meant as a test of British resolve it surely made no sense to launch the full Falklands invasion almost in parallel and before evaluating the British response. If it was intended as a diversionary tactic it turned out to be anything but. If Argentina intended it to be strategically vital to defending the Falklands they were deluded since the British easily retook it some weeks later.
Why bother with South Georgia as a preliminary campaign? If, as Argentina intended and hoped, the Falklands occupation had been accepted by the British and the rest of the world as a fait accompli then South Georgia would quietly have been included in any eventual settlement.