Lines of Departure
Vicious interstellar conflict with an indestructible alien species. Bloody civil war over the last habitable zones of the cosmos. Political unrest, militaristic police forces, dire threats to the solar system?
Humanity is on the ropes, and after years of fighting a two-front war with losing odds, so is Commonwealth Defense Corps officer Andrew Grayson. He dreams of dropping out of the service one day, alongside his pilot girlfriend, but as warfare consumes entire planets and conditions on Earth deteriorate, he wonders if there will be anywhere left for them to go.
After surviving a disastrous spaceborne assault, Grayson is reassigned to a ship bound for a distant colony - and packed with malcontents and troublemakers. His most dangerous battle has just begun.
In this sequel to the bestselling "Terms of Enlistment," a weary soldier must fight to prevent the downfall of his species - or bear witness to humanity's last, fleeting breaths.
Readers also enjoyed
Marko Kloos
Marko Kloos has built a reputation in the world of military science fiction by weaving complex narratives where war, politics, and the human condition collide against the backdrop of interstellar conflict. A writer whose career is as multifaceted as his stories, Kloos' journey from his native Germany to the United States is one of both personal reinvention and creative discovery.
Growing up in the small town of Münster, Germany, Kloos developed an early love for science fiction, delving into the works of authors who would later inspire his own storytelling. His first passion, however, wasn't writing—it was military service. He spent time as a junior NCO in the West German military, which would later seep into his stories, giving them a grounded, authentic touch. After the military, Kloos tried his hand at several professions, including bookselling and IT administration, before settling into life as a full-time writer.
Frontlines
Frontlines consists of eight primary books, and includes two additional books that complement the series but are not considered mandatory reads — considered a complete series. The current recommended reading order for the series is provided below.

