In 1982, the Welsh Guards (CO Lieutenant-Colonel John Rickett) formed part of the 5th Infantry Brigade of the British Task Force sent to liberate the Falkland Islands from Argentinean occupation during the Falklands War. On the 7th of June they were onboard the ill-fated Sir Galahad, which was accompanied by Sir Tristram, waiting to be landed at Bluff Cove though they were delayed from doing so. However, attack was imminent after the landing craft were spotted by Argentinian observers. At 2:00pm, five Dagger and five Skyhawk aircraft were seen over the Falklands. Shortly afterwards, the Daggers were the first to attack. They hit the frigate HMS Plymouth with cannon fire as well as bombs, igniting a depth charge aboard the ship, causing slight damage. She survived this engagement, indeed the conflict itself, and is now a museum ship at Birkenhead.
Only a short time later, the Skyhawks reached Ftizroy, with three of the aircraft hitting the |Sir Galahad two or more times with horrific consequences. Sir Tristram was also hit which killed two crewmen, both ships were ablaze. The attack on Sir Galahad culminated in dreadfully high casualties, 48 dead, 32 of them Welsh Guards, 11 other Army personnel and five crewmen from Sir Galahad herself. There were many wounded, many suffering from horrendous burns caused by fire from the burning ships most notably, Simon Weston. The burnt-out |Sir Galahad was later scuttled at sea to allow her to become a war grave. Sir Tristram herself was repaired and rebuilt in 1985.
The Welsh Guards returned home soon after the war concluded. They had performd with valour and courage in their involvement in a war 8,000 miles from home, all the more astonishing with the fact they were more adjusted to the numerous ceremonial duties they performed in London. Members of the regiment were awarded 1 Military Cross (MC) and 3 Military Medals (MM). The regiment' was awarded the theatre honour "Falkland Islands 1982".