Argentina created a permanent settlement  Argentina formally took posession of the islands in 1820 and established permanent settlements in that decade. Previous settlements by Spain and Britain had been military in nature (garrisons). Britain did not protest to these acts of sovereignty. The Argentinean settlements were only ended by illegal military force, the first strike by an American warship, acting on its own initiative and encouraged by the British charge de affairs in Buenos Aires, and the second and last blow by a British taskforce.