For extraordinary heroism while serving as a Wireman in Headquarters Battery, Eleventh Marines, First Marine Division (Reinforced), in action against enemy aggressor forces in Korea on the night of 26 Oct 1952. With the entire area subjected to intense artillery and mortar fire after the outpost was destroyed and the observation team forced to seek cover in a bunker on the reverse slope of the hill, Corporal Roy quickly armed himself and unhesitatingly left the bunker with his comrades to meet the impending ground attack. When the intensity of the barrage increased, preventing the evacuation of the wounded and forcing most of the defenders to withdraw to an adjoining hill, he immediately returned to the bunker with a companion and positioned himself in the front of the entrance to protect the wounded. Receiving the brunt of the hostile attack, he gallantly engaged the enemy and aided killing an estimated twelve attackers before his ammunition was expended. Although painfully wounded when a hostile grenade landed in the bunker, he and his comrade feigned death until enemy soldiers had searched the shelter and departed. Refusing to leave his wounded companion, Corporal Roy remained in the danger area until the early hours of dawn and, although unarmed and aware that the position was still under enemy control, fearlessly left the bunker for aid. Twice wounded when the enemy opened fire on him from an observation trench immediately above the bunker, he chanced upon a box of hand grenades in the rubble and hurled the missiles into the trench until his supply was exhausted, escaping through a hail of hostile fire to friendly lines where he refused evacuation until he disclosed the situation on the hill. His indomitable fighting spirit, great personal valor and exemplary courage in the face of heavy odds reflect the highest credit upon Corporal Roy and enhance the finest traditions of the United States Naval Service.