The best military sci-fi books that actually understand what it feels like to be in the military

I have never read a book that more perfectly captures the day-to-day reality of military life. Having served in the Navy for over twenty years, I found Heinlein’s descriptions of shipboard life, basic training, and the camaraderie of brothers in arms to be pitch-perfect and laced with the subtle humor of cynicism that every sailor feels.

But beyond that, I was fascinated by Heinlein’s exploration of the ethics of war, and how the society in Starship Troopers was able to justify its actions against the enemy. Despite all they go through, none of the characters ever question why they’re fighting and I think this is one of the core issues Heinlein is exploring: how is it possible to convince an educated public to support terrible actions?

There’s a sadness to this book that captures the sense of futility many soldiers feel when they’re in the thick of combat. Why are we doing this? Is it even okay to ask that question? Not that Forever War is a sad book – the narrative carries a sense of hope that reflects the optimism of youth as our heroes travel to strange planets to fight.

Joe Haldeman’s military experience shines through as he builds the relationships between the men and women who serve together. He also understands how isolated veterans can feel coming home after combat—how their society doesn’t understand what they’ve been through and cares even less. But the book is always a tribute to the soldiers and is ultimately an inspiration.

The premise of Old Man’s War is basically every old man’s fantasy (no… not what you think). But if there really was a way to combine the wisdom of age with the virility of youth, I think we’d all be on board.

From a military point of view, it does a great job of bringing a civilian through the recruiting and basic training process without resorting to the trope of a wide-eyed, innocent youth who finds his strength.

In this case, our recruit already comes with a lifetime of experience and his observations of military training and philosophy are pithy, grounded and very entertaining. It’s a fresh look at basic training and it goes a long way to explain why recruits are trained the way they are.

World War Z offers an intriguing insight into the method of warfighting. The zombies are attacking New York, and the US Army is there to stop them. But the ammunition the Army has brought is designed, as the expert on scene describes, to overwhelm and terrorize the enemy. The intent is not to kill the enemy so much as to break their spirit. The zombies, knowing no fear, just keep advancing, and the tactic is a failure.

I appreciate this insight into the psychology of war and the preference for “shock and awe” tactics rather than full-on destruction. Don’t get me wrong – many people die in war. But Max Brooks accurately identified the truth that most soldiers don’t want to kill their enemy: they just want everyone to go home.

The ethics of war are rarely explored with more punch than in Ender’s Game. The story begins with what seems like a standard military coming-of-age tale with new recruits arriving at basic training – but very quickly, the reader learns that this ain’t your granddaddy’s basic. I appreciate the blend of cool sci-fi with realistic interpersonal conflict between recruits.

But the whole thing is ultimately a misdirection, and the surprise ending brings to center stage, in full spotlight, the question of to what lengths we will go in order to win a war. Who are we willing to sacrifice? What damage to our future are we willing to accept for victory in the present? It is written with a soft touch, but the weight of its message is undeniable.