There's a time life book series, a whole series on the second war war. And they have one book called island fighting with a lot of primary source accounts that bring the chaotic and heartbreak to life. Of the forty japanese defenders on the island, 17 prisoners are taken, and most of them grievously wounded. The marines managed to get something like six medium tanks ashore. But in order for the tanks to move up and help, they would have had to have rolled over and crushed marined dead and wounded,. which they refused to do.