Book excerpt: Horses are one of the many unsung heroes of the American Civil War. These majestic animals were impressed into service, trained, prepared for battle, and turned into expendable implements of war. There is more to this story, however. When an army’s means and survival is predicated upon an animal whose instincts are to flee rather than fight, a bond of mutual trust and respect between handler and horse must be forged. Ultimately, the Battle of Gettysburg resulted in thousands of horses killed and wounded. Their story deserves telling, from a time not so far removed.