The ongoing tension between the two countries over the islands increased on 19 March, when a group of Argentine scrap metal merchants (which had been infiltrated by Argentine Marines) raised the Argentine flag at South Georgia Island, an act that would later be seen as the first offensive action in the war. The Royal Navy ice patrol vessel was dispatched from Stanley to South Georgia on the 25th in response. The Argentine military junta, suspecting that the UK would reinforce its South Atlantic Forces, ordered the invasion of the Falkland Islands to be brought forward to 2 April.