Book picks similar to
Cally's War by John Ringo


science-fiction
sci-fi
scifi
military-sci-fi

Valor's Choice


Tanya Huff - 2000
    They must act as soldier/protectors of the far more civilized races who have long since turned away from war... — Staff Sergeant Torin Kerr was a battle-hardened professional. So when she and those in her platoon who'd survived the last deadly encounter with the Others were yanked from a well-deserved leave for what was supposed to be "easy" duty as the honor guard for a diplomatic mission to the non-Confederation world of the Silsviss, she was ready for anything.At first it seemed that all she'd have to contend with was bored troops getting into mischief, and breaking in the new Second Lieutenant who had been given command of her men.Sure, there'd been rumors of the Others - the sworn enemies of the Confederation - being spotted in this sector of space. But there were always rumors. The key thing was to recruit the Silsviss into the Confederation before the Others either attacked or claimed this lizardlike race of warriors for their own side. And everything seemed to be going perfectly. Maybe too perfectly...

Odyssey One


Evan Currie - 2011
    Assigned the task of blazing man's first trail into that great unknown, Captain Eric Weston and the crew of the NAC Odyssey launch on a mission destined to make history.Past the bounds of comfort, they encounter horrors and wonders beyond their imagining, with people and monsters beyond reckoning.Odyssey One is the first voyage of the NAC Odyssey and its crew, and the beginnings of a Military Science Fiction Epic that combines both old school space opera, and modern storytelling in one great, exhilarating adventure.Odyssey One is a 150,000 word novel.

Freehold


Michael Z. Williamson - 2003
    Mistakes might be made, but they are never acknowledged, especially when billions of embezzled dollars earned from illegal weapons sales are at stake. But where does one run when all Earth and the planets are under the aegis of one government?

Old Man's War


John Scalzi - 2005
    First he visited his wife's grave. Then he joined the army.The good news is that humanity finally made it into interstellar space. The bad news is that planets fit to live on are scarce-- and alien races willing to fight us for them are common. So: we fight. To defend Earth, and to stake our own claim to planetary real estate. Far from Earth, the war has been going on for decades: brutal, bloody, unyielding.Earth itself is a backwater. The bulk of humanity's resources are in the hands of the Colonial Defense Force. Everybody knows that when you reach retirement age, you can join the CDF. They don't want young people; they want people who carry the knowledge and skills of decades of living. You'll be taken off Earth and never allowed to return. You'll serve two years at the front. And if you survive, you'll be given a generous homestead stake of your own, on one of our hard-won colony planets.John Perry is taking that deal. He has only the vaguest idea what to expect. Because the actual fight, light-years from home, is far, far harder than he can imagine--and what he will become is far stranger.

Legion of the Damned


William C. Dietz - 1993
    Dietz's acclaimed Legion of the Damned series... There is one final choice for the hopeless, the terminally ill, the condemned criminals, the victims who cannot be saved: becoming cyborg soldiers in the Legion. Their human bodies are destroyed and they are reborn as living weapons. But when aliens attack the Empire, the Legion must choose sides.

Orphanage


Robert Buettner - 2004
    Original.

Warship


Joshua Dalzelle - 2015
    The advent of faster-than-light travel has opened up hundreds of habitable planets for colonization, and humans have exploited the virtually limitless space and resources for hundreds of years with impunity. So complacent have they become with the overabundance that armed conflict is a thing of the past, and their machines of war are obsolete and decrepit. What would happen if they were suddenly threatened by a terrifying new enemy? Would humanity fold and surrender, or would they return to their evolutionary roots and meet force with force? One ship—and one captain—will soon be faced with this very choice. Against incredible odds, Jackson Wolfe is determined to save humanity–and in the process, might end up saving himself.

A Talent for War


Jack McDevitt - 1989
    But now, one man believes Sim was a fraud, and Alex must follow the legend into the heart of the alien galaxy to confront a truth far stranger than any fiction.

Warp Speed


Travis S. Taylor - 2004
    Neal Anson Clemons, brilliant physicist and martial arts expert, was born at the very moment that men first landed on the moon, and his dream had always been to find a way to travel to the stars. And now he and his team have achieved a breakthrough, both in building a warp drive, and finding a new energy source powerful enough to make the drive more than an interesting theoretical concept. With the help of a beautiful Air Force Major and astronaut, Tabitha Ames, the US Government has funded the project, including assembly in orbit of the first faster-than-light probe. Unfortunately, forces working behind the scenes have much darker dreams, and they do not hesitate to blow up a space shuttle, attempt to kill Neal and Tabitha, and use the stolen warp technology to start what they expect to be a short victorious war with the United States. But Neal has ideas for using warp drive completely unsuspected by America's enemies, and repelling the all-out attack is only the beginning of a titanic struggle to reach the stars.

Midshipman's Hope


David Feintuch - 1994
    With no chance of rescue, Nicholas Seafort must save lives and take them, in the name of duty.

A Call to Arms


Alan Dean Foster - 1991
    Whether it wanted to or not. When the Amplitur and their allies stumbled upon the races called the Weave, the Purpose seemed poised for a great leap forward. But the Weave's surprising unity also gave it the ability to fight the Amplitur and their cause. And fight it did, for thousands of years.Will Dulac was a New Orleans composer who thought the tiny reef off Belize would be the perfect spot to drop anchor and finish his latest symphony in solitude. What he found instead was a group of alien visitors, a scouting party for the Weave, looking for allies among what they believed to be a uniquely warlike race, Humans.Will tried to convince the aliens that Man was fundamentally peaceful, for he understood that Human involvement would destroy the race. But all too soon, it didn't matter. The Amplitur had discovered Earth...

The Puppet Masters


Robert A. Heinlein - 1951
    Then came the announcement that the whole thing was a hoax. End of story. Case closed.Except that two agents of the most secret intelligence agency in the U.S. government were on the scene and disappeared without reporting back. Then four more follow up agents also disappeared. So the head of the agency and his two top agents went in and managed to get out with their discovery: an invasion is underway by slug-like aliens who can touch a human and completely control his or her mind. What the humans know, they know. What the slugs want, no matter what, the human will do. And most of Iowa is already under their control.Sam Cavanaugh was one of the agents who discovered the truth. Unfortunately, that was just before he was taken over by one of the aliens and began working for the invaders, with no will of his own. And he has just learned that a high official in the Treasury Department is now under control of the aliens. Since the Treasury Department includes the Secret Service, which safeguards the President of the United States, control of the entire nation is near at hand.

Earth Alone


Daniel Arenson - 2016
    They came to destroy us. Fifty years ago, bloodthirsty aliens devastated the Earth. Most of humanity perished. We fell into darkness. But now we rise from the ashes. Now we fight back. Marco Emery was born into the war. After his mother is killed, he joins the Human Defense Force, Earth's ragtag army. Emery must survive basic training, become a soldier, and finally face the aliens in battle. Against the alien onslaught, Earth stands alone. But we will fight. We will rise. We will win.

Prador Moon


Neal Asher - 2006
    Academic and insightful, its dominion stretches from Earth Central into the unfathomable reaches of the galactic void. But when the Polity finally encounters alien life in the form of massive, hostile, crab-like carnivores known as the Prador, there can be only one outcome — total warfare! Starships clash, planets fall, and space stations are overrun, but for Jebel Krong and Moria Salem, two unlikely heroes trapped at the center of the action, this war is far more than a mere clash of cultures, far more than technology versus brute force... this war is personal.

Dorsai!


Gordon R. Dickson - 1960
    The ultimate warriors, they are known for their deadly rages, unbreakable honor, and fierce independence. No man rules the Dorsai, but their mastery of the art of war has made them the most valuable mercenaries in the known universe. Donal Graeme is Dorsai, taller and harder than any ordinary man. But he is different as well, with talents that maze even his fellow Dorsai. And once he ventures out into the stars, the future will never be the same.