On the night of 13/14 June 1982, on the Island of east Falkland, the 2nd Battalion Scots Guards attacked well entrenched enemy position on the craggy ridge feature of Tumbledown Mountain, seven kilometers to the West of Port Stanley
During the assault Piper DUFFYs section came under heavy enemy machine gun fire. Two of his comrades were killed instantly. Without hesitation and disregarding his own safety, he crawled forward to take their machine gun and continue firing. While doing so, he received a wound to the head from an enemy grenade. His gallant action enabled the remainder of his section to withdraw to cover.
For his courage and resource under fire he is strongly recommended for Mention in Despatches