HistoryData
Historical ConflictMount Longdon

Battle of Mount Longdon

British capture of Mount Longdon in June 1982 opened the route to Port Stanley and directly preceded the Argentine surrender in the Falklands War.

Duration & Scope

1982 ongoing

< 1 year

Key Facts

Date
11–12 June 1982
British unit
3rd Battalion, Parachute Regiment
Argentine unit
Elements of 7th Infantry Regiment
Part of
Brigade-size night operation (3 simultaneous battles)
Strategic result
British position overlooking Port Stanley secured

Strategic Narrative Overview

On the night of 11–12 June 1982, British forces launched a coordinated Brigade-size operation targeting Argentine defensive positions surrounding Port Stanley. The 3rd Battalion, Parachute Regiment assaulted Mount Longdon simultaneously with attacks on Mount Harriet and Two Sisters. Fighting on Longdon was intense, involving both close-quarters hand-to-hand combat and ranged fire, as the Parachute Regiment pushed Argentine defenders off the rocky ridge.

01 / The Origins

The Falklands War began in April 1982 when Argentine forces invaded the British-administered Falkland Islands, which Argentina had long claimed as its own territory under the name Islas Malvinas. Britain dispatched a naval task force to retake the islands, leading to weeks of fighting across the South Atlantic archipelago as British forces advanced toward the Argentine-held capital, Port Stanley.

03 / The Outcome

British forces successfully occupied Mount Longdon, securing a commanding position above Port Stanley. This, combined with success at the other simultaneous engagements, broke the outer Argentine defensive ring. Argentine forces on the islands surrendered on 14 June 1982, ending the conflict and reaffirming British sovereignty over the Falklands. The battle is remembered as one of the hardest-fought actions of the war.

Belligerents & Mobilization Analysis

Side A

1 belligerent

United Kingdom – 3rd Battalion, Parachute Regiment

Side B

1 belligerent

Argentina – 7th Infantry Regiment (elements)
Outcome
British victory; Mount Longdon captured, securing a dominant position above Port Stanley ahead of Argentine surrender

Kinetic Engagement Axis

Major engagements timeline (1982–present)Timeline of major military engagements plotted chronologically.1982present1982Battle of Mount …Allied1982Battle of Mount …Allied1982Battle of Two Si…Allied

Scroll horizontally to view full axis. Events plotted relatively.

Side A victorySide B victoryInconclusiveDecisive / turning point

Location

Map of Mount Longdon, Falkland IslandsMap of Mount Longdon, Falkland IslandsMount Longdon, Falkland Islands