Occupation of the Falkland Islands Six days later, on 20 June, British forces landed on the South Sandwich Islands and Southern Thule where 10 unarmed Argentines handed over their station. 649 Argentines, 255 Brits and 3 Falkland Islanders died during the war. The Argentine Administration officially continued to exist until 15 May 1985 when it was dissolved by President Raúl Alfonsín. Since then, Argentina has claimed the islands are part of Tierra del Fuego (then an Argentine National Territory) which became a fully-fledged province of Argentina in 1990. Occupation of the Falkland Islands The occupation of the Falkland Islands and of South Georgia and the
Reassertion of British sovereignty over the Falkland Islands (1833) on the grounds of prior discovery. The next year Captain John MacBride established a British settlement at Port Egmont. The British presence in the west continued, until interrupted by Spain (who had acquired the French colony), during the Falkland Crisis from 10 July 1770 to 22 January 1771. Economic pressures led Britain to unilaterally withdraw from many overseas settlements in 1774. On 20 May 1776 the British forces under the command of Lieutenant Clayton formally took their leave of Port Egmont, leaving a plaque asserting Britain's continuing sovereignty over the islands. The Falkland Islands remained an important outpost for whalers