Last Updated on 4 days ago by TodayWhy Editorial
Why does Argentina claim the Falkland Islands? The question has two answers that have never been reconciled. Argentina calls the archipelago the Islas Malvinas and considers them an integral part of its national territory, inherited from Spain and seized by Britain in 1833. Britain calls them the Falkland Islands, a British Overseas Territory whose inhabitants have repeatedly chosen to remain British. Both sides have legal and historical arguments. Neither has given up.
The Short Answer
Argentina claims the Falkland Islands for four main reasons:
- It inherited Spain’s rights over the islands after independence (the principle of uti possidetis iuris).
- It exercised sovereignty there between 1820 and 1833.
- Britain expelled the Argentine authorities by force in January 1833.
- The islands lie only about 480 km from the Argentine mainland, far closer than to Britain.
Britain rejects all four points and bases its claim on prior discovery and settlement, continuous administration since 1833, and the right of the islanders to self-determination.
Why Does Argentina Claim the Falkland Islands? The Historical Case
Argentina’s official position is written into its constitution: the country has a “legitimate and imprescriptible” claim to the Malvinas, South Georgia and the South Sandwich Islands.
The argument begins with Spain. Spain occupied the islands in the 18th century after buying out an earlier French settlement. When the United Provinces of the Río de la Plata (later Argentina) declared independence from Spain in 1816, they claimed to inherit all Spanish territories in the region, including the islands.
In 1820 an Argentine officer formally took possession. In 1829 Buenos Aires appointed Luis Vernet as governor. Argentina therefore argues that by 1833 it had a functioning settlement and administration on the islands — not an empty territory.
Argentina also emphasises geography. The Falkland Islands lie roughly 480 km off the coast of Patagonia and more than 12,000 km from London.
What Is Britain’s Legal Case for the Falkland Islands?
Britain’s case rests on three pillars:
- A claim of first discovery and early settlement in the 18th century.
- Continuous, effective administration since 1833.
- The principle of self-determination of the current population.
Britain argues that the islands were disputed in 1833, not clearly Argentine. It also points out that the present population is overwhelmingly British in origin and has lived there for generations.
Britain’s claim also reaches back to the 18th century. English captain John Strong made the first recorded landing in 1690, and Britain formally claimed the islands in 1765, a year before Spain took over an earlier French settlement there. London’s argument is that it never renounced this claim, even during a period when it withdrew its garrison in 1774 — a departing British officer left behind a plaque asserting continued sovereignty. International lawyers who have examined the case, including Chatham House’s Marc Weller, note that Argentina’s inheritance argument runs into a basic problem: a newly independent state cannot inherit territory its colonial predecessor did not actually hold. Weller’s analysis concludes that Britain’s nearly two centuries of continuous administration since 1833, combined with the islanders’ own repeatedly stated wish to remain British, gives London the stronger legal position — though he notes Argentina’s case is not baseless, just weaker than London’s. Britain’s strongest modern argument is self-determination. The islands have their own government, and in a 2013 referendum, 99.8% of Falkland Islanders voted to remain a British Overseas Territory, with 92% turnout. Argentina rejects this argument on principle — it says the islanders are a population implanted by a colonial power and cannot be allowed to outvote Argentina’s underlying territorial claim.
What Happened in 1833?
On 3 January 1833 a British naval force arrived at Puerto Soledad (now Port Louis) and ordered the Argentine garrison to leave. The Argentine commander withdrew without a fight. Most of the small civilian population was later removed or left.
Argentina calls this an illegal usurpation. Britain calls it the reassertion of an older claim. This single event is the origin of the modern dispute. Argentina has never accepted the British occupation and has protested it, with interruptions, for nearly two centuries.
Why Did Argentina Invade in 1982 — and What Changed?
The dispute turned violent in April 1982, when Argentina’s military junta invaded the islands, partly to distract from a collapsing economy and domestic unrest at home. Britain, under Prime Minister Margaret Thatcher, sent a naval task force roughly 8,000 miles to retake them. The war lasted 74 days and killed around 900 people — 649 Argentines and 255 Britons — before Argentina surrendered. The defeat brought down Argentina’s military dictatorship and ushered in the country’s return to democracy, which is part of why the islands still carry such emotional weight there: losing the war is remembered as a national trauma, but it also cleared the way for civilian rule. Every Argentine government since 1982, regardless of party, has formally maintained the sovereignty claim.
The 2013 Referendum and Self-Determination
In March 2013 the Falkland Islanders held a referendum on their political status. On a turnout of more than 90%, 1,513 out of 1,517 valid votes were in favour of remaining a British Overseas Territory. Only three people voted against.
Argentina does not recognise the referendum. It argues that the islanders are a transplanted settler population, not a people with a right to self-determination that can override Argentina’s territorial integrity.
Today the islands have a population of around 3,500. Most residents are of British descent. English is the official language. The local government is responsible for most internal affairs; defence and foreign policy remain with the United Kingdom.
Why Is the Falklands Dispute Back in the News Now?
The immediate trigger is football. Argentina beat England 2-1 in a dramatic World Cup semifinal on July 15, 2026, with Lautaro Martinez scoring a 92nd-minute winner. Argentine players celebrated by holding up a banner reading “Las Malvinas son argentinas” (“The Malvinas are Argentine”), and videos circulated of the squad singing a chant referencing the islands after their earlier quarterfinal win. Argentina’s vice president, Victoria Villarruel, had already sharpened the rhetoric before kickoff, and Foreign Minister Pablo Quirno published an article in La Nación days before the match reaffirming Argentina’s sovereignty claim. This is not simply football nationalism. Argentine war veterans’ groups issued a public statement ahead of the match insisting that the game is not an armed rematch or historical compensation for 1982, urging fans to support their teams without hatred. But the timing — a marquee match against England, 44 years after the war — was always going to reopen the wound. Argentina went on to lose the final to Spain 1-0 in extra time on July 19. That didn’t end the story: FIFA has since moved from investigating the banner to formally opening disciplinary proceedings against the Argentine Football Association, covering not just the banner but discriminatory chants, security failures, and objects thrown by spectators across multiple matches. FIFA also opened a separate case over a post-final brawl involving Argentina players Leandro Paredes and Nahuel Molina and assistant coach Roberto Ayala. For the full breakdown of the charges and what penalties FIFA could impose, see our companion piece on why Argentina is facing FIFA disciplinary action after the World Cup.
How Are Trump and the Iran War Fallout Reshaping the Dispute?
The football moment landed on top of a genuine diplomatic flashpoint. In April 2026, Reuters reported on a leaked Pentagon memo, drafted by policy adviser Elbridge Colby, that floated reviewing US support for the “imperial possessions” of NATO allies — including the Falklands — as retaliation against European countries that declined to help the United States during its war with Iran and the fight to reopen the Strait of Hormuz. The idea was widely read as a shot at the United Kingdom specifically, whose then-prime minister, Keir Starmer, had refused to let US forces use UK bases for strikes on Iran. Argentine President Javier Milei, a close Trump ally, welcomed the memo, posting that the islands “were, are, and always will be Argentine.” UK figures across the political spectrum, including Conservative leader Kemi Badenoch and then-Foreign Secretary Yvette Cooper, immediately restated that sovereignty rests with Britain. The episode did not last long as a formal US policy shift — Secretary of State Marco Rubio subsequently said publicly that the US position on the islands’ sovereignty was unchanged — but it showed how easily the dispute can be pulled into unrelated geopolitical fights. It is the same Iran-war fallout that reshaped who controls the Strait of Hormuz, another waterway whose ownership suddenly became a live diplomatic question in 2026.
Could the Falkland Islands Ever Become Argentine?
A transfer of sovereignty would require either:
- A change of mind by the islanders, or
- A negotiated settlement between London and Buenos Aires that the islanders accept.
Neither looks likely in the near future. Argentina continues to raise the issue at the United Nations. Britain continues to say the wishes of the Falkland Islanders are paramount.
Frequently Asked Questions
Why does Argentina call the Falkland Islands the Malvinas?
“Malvinas” comes from the French name Îles Malouines, given by French colonists from Saint-Malo who established the islands’ first settlement in 1764. Argentina adopted the Spanish version, Islas Malvinas, after inheriting Spain’s territorial claims in the region.
Who currently controls the Falkland Islands?
The United Kingdom administers the islands as a British Overseas Territory, with a locally elected government handling most domestic affairs while London controls defense and foreign policy. Britain maintains a permanent garrison there.
What did the 2013 Falklands referendum decide?
Falkland Islanders voted 99.8% in favor of remaining a British Overseas Territory, on a 92% turnout. Only three people voted against.
Did the 2026 Iran war really affect the Falklands dispute?
Indirectly, yes. A leaked Pentagon memo proposed reviewing US support for the UK’s Falklands claim as retaliation for Britain staying out of US military action against Iran, though the State Department later said its position on the islands had not changed.
Why does Argentina claim the Falkland Islands? Because it sees them as unfinished business from independence and 1833 — a piece of national territory taken by force and never returned. Britain sees a small community that has governed itself under the British flag for almost two centuries and has voted overwhelmingly to stay. The legal and historical arguments have not changed. The people who live there have made their preference clear. The dispute remains open.