Falkland Islands sovereignty dispute Falkland Islands sovereignty dispute Sovereignty over the Falkland Islands () is disputed by Argentina and the United Kingdom. The British claim to sovereignty dates from 1690, and the United Kingdom has exercised "de facto" sovereignty over the archipelago almost continuously since 1833. Argentina has long disputed this claim, having been in control of the islands for a few years prior to 1833. The dispute escalated in 1982, when Argentina invaded the islands, precipitating the Falklands War. Contemporary Falkland Islanders overwhelmingly prefer to remain British. They gained full British citizenship with the British Nationality (Falkland Islands) Act 1983, after British victory
Falkland Islands sovereignty dispute in the Falklands War. France was the first country to establish de facto control in the Falkland Islands, with the foundation of Port Saint Louis in East Falkland by French explorer Louis Antoine de Bougainville, in 1764. The French colony consisted of a small fort and some settlements with a population of around 250. The Islands were named after the Breton port of St. Malo as the "Îles Malouines", which remains the French name for the islands. In 1766, France agreed to leave the islands to Spain, with Spain reimbursing de Bougainville and the St. Malo Company for the cost