The infantry attacks were preceded by an artillery and mortar barrage and was accompanied by bombardments by two frigates.

2 Para drove the enemy from the northern part of Wireless Ridge, supported by bombardments from HMS Yarmouth and Ambuscade, then moved ahead to meet up with troops who had begun an advance from the easterly peninsula. They were supported by the light tanks of the Blues and Royals.

The Scots Guards advanced on Mount Tumbledown with support provided by HMS Active. The defenders outnumbered the Scots Guards and brought the advance to a halt while the Royal Artillery, the infantry's mortars and HMS Active and Avenger bombarded the ridge.

The frigates left Berkley Sound before dawn.

A mixed Army/Royal Marine Scout formation rendezvoused behind Wireless Ridge in the dawn light. The three helicopters were each fitted with wire-guided missiles and made two passes over the ridge to fire on defensive bunkers scoring three direct hits on 105mm gun pits.

The Gurkhas came around the flank of the Argentine marines holding Mount Tumbledown and the defenders finally broke. The Gurkhas moved on to take Mount William. The high ground was now in British hands.

GR3s from the Hermes delivered a laser-guided bomb strike on a battery covering the marines' pull-back from Tumbledown.

By now the only eminence in Argentine hands was Sapper Hil, located a little to the west of Port Stanley.

Naval transport helicopters flew Alfa and Charlie Companies of 40 Cdo forward to Sapper Hill. The first troop were dropped too close to the enemy and two Marines were wounded. As the troops were set down, they were ordered to cease fire. The Argentine Army was negotiating a cease-fire.

By 11.30am 2 Para were in Port Stanley, 40 Cdo overlooking it from Sapper Hill with orders to fire only in self-defence.

The Battle Group learned of the cease-fire via one of the GR3 pilots, who was instructed to hold off from a laser-guided bomb attack and sent back to Hermes with the news that white flags had been seen over Port Stanley.

Admiral Woodward was aware that the negotiations concerned only the Argentine forces on the islands and warned his ships, 'Our guard must not be reduced but we must not jeopardize results so far achieved …. ARG air threat (overland) remains and must be countered. The threat at sea has not changed.'

CAPs continued to fly through the day.

HMS Plymouth and Yarmouth detached to proceed to Berkley Sound in the afternoon to provide supports in the event of the negotiations breaking down.

One of the 820 Sqn Sea Kings took General Moore from the Fearless to Port Stanley where at midnight Greenwich Mean Time, General Menedez and General Moore signed the formal instrument of surrender.