Dug in with another Marine, he and his comrade engaged in a fierce hand grenade duel with infiltrating enemy soldiers. When a Japanese grenade landed beyond reach in their foxhole, Private First Class Foster, with complete disregard for his personal safety, dove on it and absorbed its full explosion with his own body, thus protecting the other Marine from serious injury. Miraculously, he survived the explosion. Mortally wounded, he handed his two remaining grenades to his comrade and said, "Make them count…" then was brought to medical care where he died of his injuries."
http://en.wikipedia.org/wiki/William_A._Foster