The President of the United States of America, authorized by Act of Congress July 9, 1918, takes pleasure in presenting a Bronze Oak Leaf Cluster in lieu of a Second Award of the Silver Star to First Lieutenant (Infantry) Smith Barton Chamberlain (ASN: 0-27587), United States Army, for gallantry in action as a member of Company E, 2d Battalion, 65th Infantry, 3d Infantry Division, in action against an armed enemy in Korea. On 23 April 1951, near Onsu-dong, Korea, the Third Platoon was occupying a defensive position on Hill 150 when furiously attacked by an enemy force of battalion strength. Lieutenant Chamberlain, platoon leader, observing that his recoilless rifle positions were being overrun, raced 400 yards to reorganize that part of his platoon. Upon returning to the command post, he was cut off by hostile troops; undaunted, Lieutenant Chamberlain charged through the enemy soldiers killing five with grenades and accurate fire from his weapon. Immediately informing the company commander of the situation, he was advised to withdraw 600 yards to Hill 147. Lieutenant Chamberlain, realizing that such an action would expose the left flank of Company F, 2d Battalion, ordered a slight displacement to the highest point of Hill 150 where, spurred by his inspirational leadership, the platoon repulsed the fanatical attacks and held the strategic hill. Lieutenant Chamberlain’s gallantry, courage, and outstanding tactical skill reflects the highest credit upon himself and the military service.