The President of the United States of America, under the provisions of the Act of Congress approved July 9, 1918, takes pleasure in presenting a Bronze Oak Leaf Cluster in lieu of a Second Award of the Distinguished Service Cross to Sergeant First Class George D. Chamberlain (ASN: RA-7040810), United States Army, for extraordinary heroism in connection with military operations against an armed enemy of the United Nations while serving with Company K, 3d Battalion, 23d Infantry Regiment, 2d Infantry Division. Sergeant First Class Chamberlain distinguished himself by extraordinary heroism in action against enemy aggressor forces in near Yongsan, Korea, on 16 September 1950. During the morning of 16 September, Sergeant Chamberlain was a member of Company K when that unit was subjected to a savage attack by a numerically superior enemy force. The enemy succeeded in penetrating through one of the platoons which was near the squad he commanded. Disregarding completely the deadly enemy fire, Sergeant Chamberlain left his covered position and want to the assistance of the platoon sergeant of the overrun platoon. He then rallied his squad and with the remainder of the other platoon, led a counterattack which retook the position and routed the enemy force leaving 103 of their dead on the position. Although wounded at the beginning of the action, and in great pain, he personally led the counterattack, exposing himself throughout to a withering hall of enemy fire and inspiring all members of the unit by his heroic example. The extraordinary heroism displayed by Sergeant First Class Chamberlain on this occasion reflects the greatest credit on himself and is in keeping with the high traditions of the military service.