If the cadets who marched to Richmond with Thomas Jackson four days later had been asked why they were doing it, few would have replied that it was because of their convictions about slavery, or their beliefs about state sovereignty or any of the other great national questions that had been debated for so long. They would have told you then—as most of Stonewall Jackson’s soldiers in the army of the Confederate States of America would have told you later—that they were fighting to repel the invaders, to drive the Northern aggressors from their homeland.