" December 1944. The last Christmas for too many young boys. Then off for the forty-day sail to Iwo Jima. The boys of Spearhead had been expertly trained for ten months. They were proficient in the techniques of war. But more important, they were a team, ready to fight for one another. These boys were bonded by feelings stronger than they would have for any other humans in their life.

The vast, specialized city of men — boys, really, but a functioning society of experts now, trained and coordinated and interdependent and ready for its mission — will move out upon the Pacific. Behind them, in safe America, Bing Crosby sang of a white Christmas, just like the ones he used to know. Ahead lay a hot island of black sand, where many of them would ensure a long future of Christmases in America by laying down their lives. "

― Michael R. French , Flags of Our Fathers