I’m not sure that this link really helps your case, given these key points from the description:
The resolution by the British representative, Ambassador Sir Anthony Parsons
demanded an immediate cessation of hostilities between Argentina and the United Kingdom and a complete withdrawal by Argentine forces
Resolution 502 was in the United Kingdom’s favour by giving it the option to invoke Article 51 of the United Nations Charter and to claim the right of self-defence
i_understood_that_reference.jif