Military Space Opera

In the distant future, humans and several other races have been granted membership in the Confederation - at a price. They must act as soldier/protectors of the far more civilized races who have long since turned away from war.

The galaxy was once terrorized by the Sturm, a group of “species purists” intent on destroying any human with genetic or cybernetic enhancements. Fashioning themselves as the one true “Human Republic,” the Sturm cut a bloody swath across the stars, killing billions before finally being defeated and driven into the far reaches of Dark Space. Centuries of peace bred complacency. Everyone believed the Sturm had died out in the Dark. They were wrong.

The galaxy remembers Hadrian Marlowe as a hero: the man who burned every last alien Cielcin from the sky. They remember him as a monster: the devil who destroyed a sun, casually annihilating four billion human lives - even the emperor himself - against Imperial orders. But Hadrian was not a hero. He was not a monster. He was not even a soldier. Fleeing his father and a future as a torturer, Hadrian finds himself stranded on a strange, backwater world.

On the 13th day of Secundus, the bombardment of Terra began. With the solar defences overcome through the devastating strength of the Traitor armada and the power of the warp, Horus launches his assault on the Throneworld in earnest. After withstanding a ferocious barrage of ordnance, an immense ground war commences outside the Palace, with every inch gained paid for in the lives of billions.

The unimaginable has happened. Sylvas has taken in War, Blood, and Strife and bound it to his heart. A feat that has seen the Empyrean Alliance plucking him from the comforts of the Ardent and pulling back the veil that once masked everything. Now, for the first time ever, Sylvas can see his place in the galaxy, standing between the threats that seek to unmake it.

The 200 years' (and counting) peace was a time of tranquility that hasn't been seen since...well, ever. Mankind in the Galactic Age had finally conquered war, so what was left for the military to do but drink and barbecue? That's the kind of military that Sergeant R. Wilson Rogers lived in before he left the fleet to become a smuggler. But it turns out that smuggling is hard. Like getting-arrested-for-dealing-with-pirates-and-forced-back-into-service kind of hard.

After saving the world many times, the Merry Band of Pirates have accepted the inevitable: Earth is doomed. All they can do is try to bring a few thousand people to safety, before vicious aliens arrive to destroy humanity's homeworld. No. There is one other thing they can do: hit the enemy so hard that the aliens will regret they ever heard of humans.

Colonel Joe Bishop made a promise and he's going to keep it; taking the captured alien starship Flying Dutchman back out. He doesn't agree when the UN decides to send almost 70 elite Special Operations troops, hotshot pilots, and scientists with him; the mission is a fool's errand he doesn't expect to ever return from. At least, this time, the Earth is safe, right? Not so much.

The Warmaster’s horde advances through the fire and ash of Terra's dying breaths, forcing the loyalists back to the Delphic Battlement—the very walls of the Sanctum Imperialis. Angron, Primarch of the World Eaters and Herald of Horus, has achieved immortality through annihilation—now he leads the armies of the damned in a wrathful tide, destroying all before them as the warp begins its poisonous corruption of Terra's very soil.

While the crew of the starship Flying Dutchman have been trying to assure that hostile aliens do not have access to Earth, the UN Expeditionary Force has been stranded on the planet they nicknamed "Paradise." The Flying Dutchman is headed back out on another mission, and the UN wants the ship to find out the status of the humans on Paradise. But Colonel Joe Bishop warns that they might not like what they find, and they can't do anything about it without endangering Earth.

A cease-fire that has lasted seven years... Worlds half-destroyed that have been rebuilt anew... Friends and crewmates scattered light-years apart... New leaders that would be kings... The Jung threat has been renewed, in ways not imagined. It will take a new savior to inspire the masses, and once again lead those willing to fight against oppression. But who will the new savior be?

The Interdependency, humanity’s interstellar empire, is on the verge of collapse. The Flow, the extra-dimensional conduit that makes travel between the stars possible, is disappearing, leaving entire star systems stranded. When it goes, human civilization may go with it - unless desperate measures can be taken. Emperox Grayland II, the leader of the Interdependency, is ready to take those measures to help ensure the survival of billions. But nothing is ever that easy.

The war for the fate of mankind blazes on. Though the outer defences have fallen, the walls of the Palace itself remain inviolate as Rogal Dorn, the Praetorian of Terra himself, uses every known stratagem and ploy to keep Horus' vast armies at bay. In Perturabo, the Traitor siegebreaker, Dorn faces an adversary worthy of his skill. A terrible, grinding attrition ensues. The crucial battle for the Lion's Gate spaceport is at the heart of this conflict. With it in their possession, the Traitors can land their most devastating weapons on Terran soil. Dorn knows it must not fall.

Kylie Rhoads is a junker. She makes her living traveling the stars, salvaging abandoned ships left over from pirate attacks on the edge of the Gedri system. Some of the hulls are legal for the taking, most aren't. When a salvage job goes bad, Kylie finds herself on the wrong end of a gun. The hand holding that gun? The SA Space Force, just the people Kylie wants to avoid. To avoid prison, Kylie makes a deal to go deep into the Gedri System and rescue a simple girl. But out on the fringe, nothing is as it seems.

The Custodian Guard have stood watch over the Emperor's Palace on Terra since the foundation of the Imperium. Charged with protecting the Master of Mankind from all threats, within and without, their fearsome resolve is renowned throughout the galaxy, and their golden armour is the last thing that a would-be assassin or saboteur will ever see.

After seven years of bitter war, the end has come at last for the conflict known infamously as the Horus Heresy. Terra now lies within the Warmaster’s sights, the Throneworld and the seat of his father’s rule. Horus’ desire is nothing less than the death of the Emperor of Mankind and the utter subjugation of the Imperium. He has become the ascendant vessel of Chaos and amassed a terrible army with which to enact his will and vengeance. But the way to the Throne will be hard as the primarch Rogal Dorn, the Praetorian and protector of Terra, marshals the defences.

Cade Korbin became a bounty hunter because he knew what it was like to be hunted. What he didn’t know was who he’d end up hunting. When it suited the Coalition, Cade was a Paladin, a member of their elite special forces. He did their dirty work and cleaned up their messes. Until his dark ops went public, and Cade was drummed out of the service with a dishonorable discharge. As if he’d ever been doing anything but following orders.

Lieutenant Alex "Flex" Callahan watched helplessly as the first refugee ships fled Venus. Something was driving them mad, transforming both crew and vessels into horrors. But this was just the beginning. The mysterious alien menace that calls itself The Cure has arrived, threatening not only death and destruction but the monstrous and chilling corruption of humanity itself. While Flex works tirelessly to discover the true nature of The Cure, he is beset on all sides by doubters and enemies within.

A great darkness has befallen the galaxy, and the armies of Chaos are rampant. To survive, humanity must retaliate and take back what they have lost. By the will of the reborn primarch, Roboute Guilliman, is the Indomitus Crusade launched - a military undertaking that eclipses all others in known history. From the Throneworld of Terra does the Avenging Son hurl his fleets, their mission the very salvation of mankind.

With over 10 million copies sold, The Expanse has become one of the biggest science fiction phenomenons of the decade. The second book in the New York Times bestselling Expanse series, Caliban's War shows a solar system on the brink of war, and the only hope of peace rests on James Holden and...