sentences:  While he and a companion were moving the man to the security of the bunker an enemy grenade exploded, knocking him and his comrade into the bunker.Although seriously wounded, he moved the wounded man to a tunnel to protect him from the devastating enemy fire.With all his team members casualties, Corporal Burke unhesitatingly and with complete disregard for his own safety armed himself with grenades, and shouting words of encouragement to his men, stormed from the bunker in a valiant one-man assault against the enemy positions.