The President of the United States of America, authorized by Act of Congress July 9, 1918, takes pleasure in presenting the Silver Star to Captain Jae Il Ko, Army of the Republic of South Korea, for gallantry in action in the vicinity of Kumwha, Korea, on 31 October 1952. His company was committed in defense of the steep, rocky Hill 598. The enemy, from commanding terrain, placed devastating artillery and automatic weapons fire on the defensive positions. With continued heavy, supporting fire, the enemy launched a strong and determined attack in an effort to dislodge friendly defense elements from the hill. Waves of hostile troops moved up the steep slopes delivering heavy small arms fire and hurling grenades. When the defensive lines were penetrated, Captain Ko immediately reorganized his men and personally directed their action in forcing the attackers from the position, while he joined in the hand-to-hand combat. The enemy fought ferociously, many times effecting a breakthrough, but each time they were driven back by the tenacious defenders under the dynamic leadership and determination of Captain Ko. When ordered to withdraw, he elected to stand fast to prevent exposure to the left flank of friendly units to enemy attack. He remained directing artillery and heavy weapons fire until attacking forces were repelled, at which time he withdrew. The gallantry, aggressive determination, and devotion to duty displayed by Captain Ko reflect the highest credit on himself and the Republic of Korea Army.