Old Man's War

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On his 75th birthday, John Perry visits his wife's grave and then joins the army. Humanity has finally reached interstellar space, but habitable planets are rare, and alien races are eager to fight for them. To protect Earth and claim new territories, the war has raged for decades, with Earth itself becoming a backwater. The Colonial Defense Force (CDF) controls most resources, and it's common knowledge that upon reaching retirement age, individuals can enlist. The CDF seeks older recruits who possess valuable life experience, offering a two-year frontline service in exchange for a homestead on a newly acquired colony planet if they survive. John Perry accepts this deal, though he has little idea of the challenges ahead. The reality of combat, light-years from home, is far more intense than he anticipates, and his transformation will be beyond his comprehension. This marks the beginning of a journey filled with unexpected trials and revelations.