55 pages • 1-hour read
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Content Warning: This section of the guide includes discussion of death and graphic violence.
The idea of following orders is a motif throughout Old Man’s War that emphasizes the CDF’s dehumanization of both its soldiers and its opponents. When John first enters the military, he repeatedly asks questions of the staff and doctors who prepare him for basic training, but each time, they refuse to answer him. In the end, he decides to simply do what he’s told, introducing the motif. When John is in his first battle, one of the tenets of his training is to “forget everything and follow orders, kill anything that’s not human and stay alive” (174). This idea of following orders permeates the rest of the text, as Viveros insists that John listen to her through multiple battles and as Jane instructs him to do what he’s told with the Ghost Brigade. In this way, the motif emphasizes the theme of The Ethics of War. The CDF produces soldiers meant only to follow orders, creating tools that can be sacrificed in the pursuit of colonialism.
While John repeatedly follows orders to survive, it is his intelligence and individual thinking that allow him to advance and be successful in the military. In the first battle, he designs a way to kill the Consu and shares it with his squadmates, securing the CDF victory. Then, when his ship skips above Coral, John quickly helps the pilot engage the escape pod and make it down to the planet, ensuring his own survival. Finally, in the battle on Coral, John ignores orders to save Jane’s life, carrying her to safety as the battle rages around him. While the CDF believes that following orders is the most important part of being a soldier, John’s arc conveys that his individuality makes him not only a successful soldier but also a full human being.
The BrainPal is a piece of technology that is built into the new body that John receives when he joins the CDF. It allows him to communicate with other soldiers, access unlimited data and information, and modify his gun in the middle of battle. It is thus a symbol that represents the CDF soldiers’ literal and figurative movement away from humanity, developing the theme of Colonization and the Conflict Between Self and Other. While it allows the CDF soldiers to become closer through constant communication, it also distances them from each other, as they do not even need to communicate with words. Moreover, the BrainPal allows the soldiers to become systematic fighting machines, giving them more power and knowledge than they’ve ever had before and thus helping them conquer their enemies even as they themselves are dehumanized.
The BrainPal also contributes to the theme of The Duality of Technological Advancement. While it is useful to John and the other soldiers, it marks an intrusion into their lives, as evidenced by the fact that most of the recruits give it negative names, like John’s decision to call his “Asshole.” It also gives the CDF power over the recruits by allowing a selective flow of information. The revelation that the BrainPal’s data on the Consu people was wrong calls into question the accuracy and function of the information that the CDF sends to the soldiers. Ultimately, the BrainPal is an endlessly useful but also destructive and misleading tool, symbolizing both the positives and negatives of technological advancement.
Isolation is a motif throughout the novel. From the very beginning, John feels isolated from those around him, unemotionally leaving his wife’s grave and his son on Earth and insisting that he has nothing to live for in his current life. Although he makes several friends in the CDF, most of them die unceremoniously in battle, disconnecting John even further. The idea of isolation emphasizes John’s loss of humanity as he becomes a machine that is designed to fight for the CDF and support its end goal of colonization.
The motif of isolation also develops the theme of the ethics of war, as John’s attitude toward his alienation conveys the humanity that the CDF is trying to destroy. Although John handles his journey pragmatically, showing little emotion or reaction to the deaths of those around him, his relationship with Jane demonstrates that he still craves personal connection. Both he and Jane are humanized by the novel’s end, giving hope that they will find a future together and rediscover the value of love.



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