Old Man’s War

At seventy-five, John Perry visits his wife's grave and then joins the army, in that order, and Scalzi's 2005 debut is the rare military SF novel where the sentence before the enlistment matters more than the firefight after. The Colonial Defence Forces recruit only the elderly of Earth, tell them nothing, and never bring them home. Everyone signs anyway. The desk finds the why of that signature the book's true subject.

The premise, audited: what if the army only recruited the old, and the enlistment bonus was youth itself, price undisclosed? The mechanism of the renewal is cover-copy territory in its broad fact and a running delight in its particulars, which the desk leaves to the text along with Perry's platoon of fellow septuagenarians discovering what their new bodies will do. The tone through the training chapters is Heinlein with the irony reinstalled, banter as a coping mechanism for people who have already buried spouses and careers and are now issued a second adolescence with a service obligation. The beer-and-physics conversations between recruits carry more grief than the funerals, delivered sideways, which is how Perry can afford it.

Then the universe arrives, and it is crowded and hungry. The colonial setting rejects the genre's usual empty frontier. Every habitable world is contested, every species is competing, and the CDF's wars are constant, small, and morally unexamined by the people fighting them, which the novel notices even when Perry cannot afford to. What the desk admires is that the comedy and the body count share chapters without cancelling each other, and that the book keeps asking what the renewed owe the dead lives they left.

The gut of the novel involves the Special Forces, the Ghost Brigades, and a soldier the desk will not describe in any particular, because the encounter is the book's emotional detonation and arrives with no warning the desk intends to preserve. Everything about that thread, through to the final pages, is sealed at full strength.

Verdict on the premise's bill. Paid, and the undisclosed price turns out to be the point rather than the trick.

Honest notices: combat casualties in volume and described plainly, species-scale violence with the ethics deferred to sequels, seventy-five-year-olds enjoying their new bodies with enthusiasm the text does not curtain, and grief as the floor under all of it.

Who is this for? Military SF readers who want jokes with their ordnance, widowers, lapsed Heinlein readers checking what survived, and anyone who has wondered what they would trade at seventy-five for one more everything. The desk knows its answer now.