Eb’s desertion forces Jethro to confront questions of morality and conscience that were previously theoretical to him. It’s clear that Eb has suffered in the war—not only did he lose his cousin and best friend, but he’s also suffered battlefield trauma, disease, and starvation. These circumstances don’t excuse his desertion, but they do make it more understandable. On the other hand, from following the war closely in the papers, Jethro has a good understanding of the stakes, and he realizes that Eb’s decision not only endangers other men in his unit but—if enough people follow the same path—the chances of Union victory and the future of the United States as well. Early in the novel, he disagreed with his father’s choice to plead for Travis Burdow’s life—to choose mercy over justice. But now that he’s older and wiser, Jethro begins to see that even justice isn’t simple. It’s not right for Eb to desert. But it’s also not right for Union generals to waste their soldiers’ lives as they did at Antietam, Fredericksburg, and elsewhere. Justice, it turns out, is hardly as unequivocal as Jethro thought. And now that it’s one of his own family members whose life is on the line, Jethro feels the pull of mercy much more strongly.