Sim War Series by Henry V. O'Neil, Vincent H. O'Neil

We are closer to the Sims than we think …For decades, mankind has been locked in a war with an alien enemy that resembles the human race so closely they are known as the Sims. Both sides battle for control of habitable planets across the galaxy—often at any cost.Lieutenant Jander Mortas is fresh out of officer training and new to the war zone, but eager to prove himself. There's just one problem: disaster strikes while he's traveling to his first assignment... moreWe are closer to the Sims than we think …For decades, mankind has been locked in a war with an alien enemy that resembles the human race so closely they are known as the Sims. Both sides battle for control of habitable planets across the galaxy—often at any cost.Lieutenant Jander Mortas is fresh out of officer training and new to the war zone, but eager to prove himself. There's just one problem: disaster strikes while he's traveling to his first assignment. He wakes to find himself marooned on what appears to be a deserted planet, with only three other survivors: a psychoanalyst, a conscientious objector, and a bitter veteran of a brutal slave-scout detachment. As the group struggles to reach safety on a nearby base, Glory Main, they discover a Sim colony—which could mean their salvation, or their demise.Thrown together, they must fight the harsh elements, an ever-present enemy, and possibly each other. less

The action-packed sequel to Glory Main Life has not been easy for Lieutenant Jander Mortas since making it to the Glory Main headquarters—with a telepathic alien entity in tow. After turning down his powerful father's offer of a desk job as an ambassador, Jander is heading back to the war zone. After joining an emergency reaction force of combat veterans known as the Orphans, Jander must work hard to get his platoon in shape for the next deployment—while learning the ropes himself... moreThe action-packed sequel to Glory Main Life has not been easy for Lieutenant Jander Mortas since making it to the Glory Main headquarters—with a telepathic alien entity in tow. After turning down his powerful father's offer of a desk job as an ambassador, Jander is heading back to the war zone. After joining an emergency reaction force of combat veterans known as the Orphans, Jander must work hard to get his platoon in shape for the next deployment—while learning the ropes himself. Because disaster soon strikes, and the Orphan Brigade is shipped out to Fractus, a harsh planet invaded by the enemy—the Sims.Meanwhile, Jander's sister, Ayliss, is on a mission of her own: to uncover a scandal that would bring an end to her father's dubious reign as Chairman of the Emergency Senate. But Olech Mortas is hiding even more than his children could ever know … less

The third installment in the action-packed Sim War seriesThe Step, a faster-than-light method of travel, is humanity's greatest advantage in its interstellar war with the Sims. Olech Mortas, Chairman of the Emergency Senate, believes the Step could be used to contact an alien entity that might tip the scales in the conflict. And he's willing to risk his life to prove it.Olech's son, Lieutenant Jander Mortas, has recently survived his first battle as part of the elite Orphan Brigade... moreThe third installment in the action-packed Sim War seriesThe Step, a faster-than-light method of travel, is humanity's greatest advantage in its interstellar war with the Sims. Olech Mortas, Chairman of the Emergency Senate, believes the Step could be used to contact an alien entity that might tip the scales in the conflict. And he's willing to risk his life to prove it.Olech's son, Lieutenant Jander Mortas, has recently survived his first battle as part of the elite Orphan Brigade. The Orphans' new mission is to investigate suspicious Sim activity on the jungle planet Verdur—but what they discover there is far worse than anything they could have imagined.Meanwhile, Jander's sister Ayliss has gone to the war zone as the governor of a new colony made up of discharged veterans. Ayliss soon realizes that she and the colonists stand in the way of both the Sim enemy and a sinister mining corporation with powerful allies.All three members of the Mortas family are about to step into dire situations. less

The fourth book in Henry V. O'Neil's Sim War series ratchets up the tension, and sets the stage for a thrilling conclusion to the series in book fiveThings are looking grim for the Alliance. A slave revolt on Celestia has split its leaders on how to proceed, and many are blaming Chairwoman Reena Mortas for the whole debacle. Her husband, Olech Mortas, remains missing. And no one is any closer to figuring out the mystery of the Step--or who is responsible for the Sims... moreThe fourth book in Henry V. O'Neil's Sim War series ratchets up the tension, and sets the stage for a thrilling conclusion to the series in book fiveThings are looking grim for the Alliance. A slave revolt on Celestia has split its leaders on how to proceed, and many are blaming Chairwoman Reena Mortas for the whole debacle. Her husband, Olech Mortas, remains missing. And no one is any closer to figuring out the mystery of the Step--or who is responsible for the Sims.After Jander Mortas's platoon in the Orphan Brigade survives a battle with horse-sized wolves, Jander is sent on a secret mission that brings him closer than ever to communication with the Sims. Meanwhile, Ayliss has joined the Banshees, an elite, all-female group of warriors. Their training is brutal, though it will prepare them for a test the likes of which they never could have imagined.Meanwhile, Jander and Ayliss and making discoveries about the Step--and what it might mean for the whereabouts of their father. less