The President of the United States of America, under the provisions of the Act of Congress approved July 9, 1918, takes pride in presenting the Distinguished Service Cross (Posthumously) to First Lieutenant (Infantry) Sylvester Vincent Porubsky (ASN: 0-1313302), United States Army, for extraordinary heroism in connection with military operations against an armed enemy of the United Nations while serving with Company A, 1st Battalion, 27th Infantry Regiment, 25th Infantry Division. First Lieutenant Porubsky distinguished himself by extraordinary heroism in action against enemy aggressor forces near Chirwon-ni, Korea, on 1 September 1950. On this date, Company A was assigned the mission of retaking a ridge in the vicinity of Chirwon-ni, Korea. Shortly after darkness Lieutenant Porubsky deployed his platoon in a skirmish line and moved slowly and silently up the hill through the hostile fire. When the silently-moving group unnerved the enemy and flashes from their weapons disclosed the hostile positions, Lieutenant Porubsky and his platoon neutralized the opposition with grenades. As the platoon continued its movement up the hill, the enemy, terrified by the silent attack, hastily abandoned their positions and fled. When the enemy moved over the crest of the hill, Lieutenant Porubsky led his platoon in a charge which destroyed the hostile ranks with grenades and rifle fire, accounted for thirty enemy dead, and secured a vital position in the battalion defense line. Lieutenant Porubsky’s outstanding heroism, superb leadership and tactical ability reflects great credit on himself and the military service. The extraordinary heroism displayed by First Lieutenant Porubsky on this occasion reflects the greatest credit on himself and is in keeping with the high traditions of the military service.