Argentina invaded the Falkland Islands on 2 April 1982 after years of sovereignty negotiations and mounting tension. The ruling military junta expected a limited British response; the British government instead assembled a task force while pursuing diplomacy.
Claims and failed deterrence
Argentina based its claim on geography and succession from Spain, while Britain relied on continuous administration since 1833 and the islanders' wishes. The legal and historical arguments remain disputed. The immediate cause of war was the junta's decision to use force.
The maritime campaign
The task force depended on aircraft carriers, submarines, tankers, merchant vessels and the distant base at Ascension Island. HMS Conqueror sank the cruiser General Belgrano on 2 May. Argentine land-based aircraft later sank several British ships, showing the vulnerability of the fleet.
San Carlos and the land war
British forces landed around San Carlos Water on 21 May. Air attacks continued as troops and supplies moved ashore. The campaign then advanced through difficult terrain and weather, including the battle of Goose Green and attacks on high ground around Port Stanley.
Surrender and cost
Argentine forces on the islands surrendered on 14 June. The war killed 649 Argentine military personnel, 255 British service personnel and three Falkland Islanders. Veterans on both sides faced lasting physical and psychological consequences.
Political consequences
Victory strengthened Margaret Thatcher's government. Defeat discredited Argentina's junta and accelerated the return to democratic rule. Britain reinforced the islands, while negotiations over sovereignty remained frozen.
National memory can turn the conflict into a simple tale of liberation or grievance. A fuller account includes islanders, Argentine conscripts, professional forces, diplomacy and the political calculations that made war possible.
Why It Matters
The conflict demonstrates the continuing power of sovereignty, nationalism and military calculation in the late Cold War.