The President of the United States of America takes pleasure in presenting the Silver Star to Staff Sergeant Arnold J. Marsili (MCSN: 647338), United States Marine Corps, for conspicuous gallantry and intrepidity while serving as a Patrol Leader of Company D, Second Battalion, Fifth Marines, FIRST Marine Division (Reinforced), in action against enemy aggressor forces in Korea on 5 and 6 July 1952. During an attack by a numerically superior fanatical enemy force, Staff Sergeant Marsili alerted the friendly outpost to a hundred per cent watch when the hostile artillery increased. After the enemy succeeded in infiltrating into the trench lines of the position, he drew his force into a tight perimeter around the command post and insured that all wounded were safe, continually moving from one position to another around the perimeter, aiding and encouraging his depleted forces and supervising the care of casualties. When the hostile attack was repelled, Staff Sergeant Marsili cared for the wounded the remainder of the night and, on the following morning, suffered a painful wound himself from enemy artillery fire. After relief was effected for his small force, he was concerned only with the welfare of his men and the reconstruction of the position, refusing medical aid until all of his men had been treated. By his indomitable courage, leadership and unyielding devotion to duty, Staff Sergeant Marsili served to inspire all who observed him and upheld the highest traditions of the United States Naval Service.