Fox Company, 2/7 Marines (2nd Battalion, 7th Marines were held in reserve) were then committed to the fight for Vegas. Charette and the other Fox Company corpsmen faced a growing number of casualties exposed to hostile small arms and mortar fire when Marines from his rifle company joined in the counterattack on March 27 against "Vegas Hill" with Charette's Third Platoon Commander, 2nd Lieutenant Theodore H. Chenoweth (Navy Cross), leading the assault in hand-to-hand fighting up the south side of the hill. When an enemy grenade landed near Charette and a badly wounded Marine he was aiding, he placed himself on top of the Marine in order to shield him from the explosion, and in doing so, the grenade's blast tore off Charette's helmet and destroyed his medical bag and knocked him unconscious. When he awoke, he found his face bleeding from shrapnel wounds and he couldn't see. He recovered enough to continue to aid Marines in the battle using torn parts of his uniform in order to dress battle wounds. In another instance, he removed his battle vest and placed it on another wounded Marine whose vest was destroyed from another explosion. In yet another instance, he attended to five Marines who were wounded in a trench from another explosion, and then stood up in the trench exposing himself to incoming rounds in order to carry the one most serious wounded comrade to safety. Charette sustained painful wounds during the day's battle and was recommended for the Navy Cross for extraordinary heroism. While still serving in Korea after the fighting ended there, he learned that he would receive the United States' highest military decoration for valor, the Medal of Honor.