For extraordinary heroism on 11 August 1970 while serving as Weapons Officer in U.S.S. Canon (PG-90) engaged in armed conflict against enemy forces in the Republic of Vietnam. Lieutenant, Junior Grade, Herbert was directing the harassment and interdiction fire of his gun crews while proceeding up the narrow Bo De river when his vessel suddenly came under intense enemy rocket, automatic-weapons, and small-arms attack from an estimated forty-man force in concealed positions on both banks of the river. During the initial hail of enemy fire, he and the commanding officer were both seriously wounded. Despite his own serious wounds, Lieutenant, Junior Grade, Herbert immediately removed the commanding officer to a position of relative safety and then, further exposing himself to enemy fire, continued to direct and coordinate the ship’s gun crews. Although weak from loss of blood, he managed to communicate with the bridge, relaying the commanding officer’s orders and keeping the latter informed of the status of the ship’s armament, propulsion, and known damage. Due to Lieutenant, Junior Grade, Herbert’s excellent training of and communication with the gun crews, a deadly and effective suppressive barrage was continued even after he was unable to personally direct the fire. When crew members found him lying on the deck, Lieutenant, Junior Grade, Herbert directed them to aid the commanding officer first. By his outstanding courage and valiant efforts in the face of heavy enemy fire, Lieutenant, Junior Grade, Herbert was directly instrumental in preventing the enemy from inflicting additional personnel casualties and material damage to the ship. His heroic actions were in keeping with the highest traditions of the United States Naval Service.