Wireless Ridge was one of seven hills within five miles of Stanley that had to fall before the capital could be approached. For the Argentine 7th Infantry Regiment dug in along it, the early weeks had been almost bearable; men shot sheep and roasted them on old bed frames, and the cavalry crews held a barbecue with beer to mark Army Cavalry Day. That ease did not last. As the British closed in, the regiment found itself the final obstacle, and on 11 June a Harrier strike on the Moody Brook barracks killed three of their soldiers and signalled what was coming. By 13 June, with Two Sisters, Mount Harriet, and Mount Longdon already taken, only Wireless Ridge and Mount Tumbledown stood between the British and Stanley.

The lesson of Goose Green was written in firepower. Before 2 Para moved, British gunners poured some 6,000 artillery rounds onto the ridge, joined by naval gunfire and the cannon of light tanks of the Blues and Royals. The Argentine commander, Lieutenant Colonel Omar Gimenez, said he was nearly killed by direct hits three or four times during the bombardment alone. Some defenders pulled back rather than endure it; D Company found one hill abandoned when they reached it. Analysts later judged that even a seasoned battalion would have struggled to hold under fire of that intensity. It was a deliberate, almost clinical use of force, and it spared the attacking infantry the slaughter their comrades had suffered in the open fields two weeks before.

Yet the Argentines did not simply collapse. As 2 Para pressed onto the ridge, cavalry reinforcements and paratroopers counterattacked in the dark, closing right in on the British 12 Platoon until the fight surged back and forth for two long hours. Men ran out of ammunition on both sides. A British officer's life was saved when a bullet struck his ammunition pouch instead of his body. Argentine soldiers volunteered to stay behind under fire to carry their wounded platoon sergeant all the way to Stanley. Near dawn, an officer rallied some fifty survivors and led a bayonet charge toward the British line, the men chanting their 'Malvinas March', before machine guns and artillery stopped them. The British major called it "quite a sporting effort, but one without a sporting chance."

By the time the ridge was firmly held, 2 Para had lost three men killed and eleven wounded; among the dead were Privates David Parr and Francis Slough. The Argentine defenders suffered far more heavily, roughly 25 killed and about 125 wounded, with some 50 taken prisoner; in places their rifle platoons lost nearly half their strength in two hours of night combat. Exhausted survivors who reached Stanley were stung to find immaculate staff officers who had slept in warm beds, with pressed uniforms and waxed moustaches; one recalled his fury. Decades later, in 2022, two of the opposing commanders met in London to exchange their memoirs, an act of reconciliation between professional soldiers who had once tried to kill each other on this hill.

Wireless Ridge was the last set-piece battle of the war, and its fall broke the defence of the capital. At first light 2 Para spearheaded the advance into Stanley, entering the town just before the formal surrender took effect. That evening, 14 June 1982, General Mario Menendez surrendered the Argentine forces on the islands to Major General Jeremy Moore. The 74-day war was over. For 2 Para, the victory carried a heavy private meaning, redemption for a battalion that had lost its commander and so many men at Goose Green. But the advance into Stanley also left officers dismayed at the human cost of modern war, and the psychological wounds of those weeks, then barely acknowledged, would shadow the survivors for years. Today a memorial on Wireless Ridge marks where the long road back to the Falklands' capital finally ended.