The President of the United States of America, authorized by Act of Congress July 9, 1918, takes pleasure in presenting the Silver Star to Sergeant First Class Heriberto Medina-Olivera (ASN: RA-30452231), United States Army, for gallantry in action as a member of Company A, 1st Battalion, 65th Infantry, 3d Infantry Division, in action against an armed enemy in Korea. On 4 June 1951, Company A was assaulting its objective, Hill 466, near Unchon-ni, Korea, when the Third Platoon became pinned down by the severe fire of an enemy automatic weapons position. Sergeant Medina-Olivera, a squad leader in this platoon, instructed his squad to cover him and, without being ordered to do so, aggressively crawled forward through the open ground which the hostile machine gun was spraying with lethal fire. Immediately sighted by the enemy gun crew as he approached their position, Sergeant Medina-Olivera faced the full fury of their weapon’s firepower, but quickly moving into a small depression, affording scant cover, he continued to advance. When he was in range, Sergeant Medina-Olivera threw hand grenades into the emplacement, destroying it and killing three of the occupants. With the weapon silenced, he signaled for his platoon to move forward and press its attack, finally securing the objective. Sergeant Medina-Olivera’s outstanding gallantry and courageous determination reflect the highest credit upon himself and the military service.