The President of the United States of America, authorized by Act of Congress July 2, 1926, takes pleasure in presenting the Silver Star to Private First Class Glenny L. Mattly (ASN: US-54926287), United States Army, for heroism not involving actual conflict with an enemy of the United States while serving with the gallantry in action involving conflict with an armed hostile force in the Republic of Vietnam. Private First Class Mattly distinguished himself by exceptionally valorous actions on 21 July 1967, while serving as a machine gunner of an Armored Cavalry Assault Vehicle with Troop L, 3d Squadron, 11th Armored Cavalry Regiment, during a convoy proceeding along Highway 20 in Vietnam. Without warning, the convoy was suddenly attacked by two battalions of Viet Cong employing anti-tank weapons, recoilless rifles, automatic weapons, and small arms fire. Private Mattly reacted to the critical situation by placing a devastating volume of fire upon the entrenched insurgents. He saw two Viet Cong attempting to flank his vehicle, and cut them down with a barrage of fire. As the Armored Cavalry Assault Vehicle proceeded into the midst of the fierce battle, Private Mattly noticed that his platoon leader’s vehicle lacked a machine gunner. In total disregard for his own safety, Private Mattly courageously dashed through a wall of fire to the undermanned vehicle and assumed a position behind one of the automatic weapons. Once more Private First Class Mattly directed intense fire upon the fanatical attackers, firing until his machine gun was hit and would not function. At this time he observed a military police vehicle, containing several wounded men, that was pinned down by hostile fire. With bullets pounding the ground around him, Private First Class Mattly ran to the vehicle and manned its machine gun, which allowed a medical corpsman to drive the vehicle through the battle to an area of relative safety. Following the evacuation of the casualties, Private First Class Mattly returned to the battle and, braving withering fire, continued to assist the medic in treating and evacuating wounded personnel until the area was secured. One Mattly’s extraordinary heroism in close combat with a hostile force is in keeping with the highest traditions of the military service and reflect great credit upon himself, his unit, and the United States Army.