On a distant Earth colony, an orphaned survivor of an alien invasion discovers that the greatest world-ending dangers aren’t behind her. It’s been eight years since an alien invasion drove a small surviving group of settlers to seek refuge in an underground shelter. Cut off from the rest of humanity, the ragtag band has maintained a narrowly functioning colony due to communal effort and salvage runs. Alex Archer has her own duties as a dog handler. While this off-world colony may be harsh, Ash, Alex’s black shepherd raised to sense threats, makes living in it a little nicer. But the tenuous hide-and-seek with the monstrous species known as the Lankies is about to come to an end for Alex and her close-knit crew of soldiers, techs, and friends. When a salvage operation goes catastrophically wrong, the Lankies home in on the humans. With hopes of a rescue long faded, all Alex has left is will—and the fear that there’s so much more to lose.

Stranded light-years from home, Major Andrew Grayson and his crew are on a desperate mission to discover the Lankies' secrets. They can't let what they've found die with them. Nine hundred light-years from home, Major Andrew Grayson and the crew of NACS Washington are marooned in a sunless system with limited water, reactor fuel, and food. The last hope for survival is to go where nothing human has gone before. After embarking on a scouting mission to the only moon with surface signs of life, Andrew and his special tactics team make two startling discoveries. One is a dream: a form of protein and plant life that could save the starving humans in the rogue system. The second is a nightmare: this harvested rock is infested with Lankies. Far from the seemingly mindless aggressors Andrew has battled for years, these show a terrifying awareness, and they have surprising secrets of their own hidden away in the darkness. When the Lankies sense an uninvited presence in their world, Andrew's operation becomes an expedition to hell. The odds against his small crew are stacked high. Of all the mysteries of space, how to escape with their lives is the greatest unknown of all.

The battle against the Lankies has been won. Earth seems safe. Peacetime military? Not on your life. It's been four years since Earth threw its full military prowess against the Lanky incursion. Humanity has been yanked back from the abyss of extinction. The solar system is at peace. For now. The future for Major Andrew Grayson of the Commonwealth Defense Corps and his wife, Halley? Flying desk duty on the front. No more nightmares of monstrous things. No more traumas to the mind and body. But when an offer comes down from above, Andrew has to make a choice: continue pushing papers into retirement, or jump right back into the fight? What's a podhead to do? The remaining Lankies may have retreated in fear, but the threat isn't over. They need to be wiped out for good before they strike again. That'll take a new offensive deployment. Aboard an Avenger warship, Andrew and the special tactics team under his command embark on the ultimate search-and-destroy mission. This time, it'll be on Lanky turf. No big heroics. No unnecessary risks. Just a swift hit-and-run raid in the hostile Capella system. Blow the alien seed ships into oblivion and get the hell back to Earth. At least, that's the objective. But when does anything in war go according to plan?

"There is nobody who does [military SF] better than Marko Kloos. His Frontlines series is a worthy successor to such classics as Starship Troopers, The Forever War, and We All Died at Breakaway Station." -George R. R. Martin The year is 2108, and the North American Commonwealth is bursting at the seams. For welfare rats like Andrew Grayson, there are only two ways out of the crime-ridden and filthy welfare tenements: You can hope to win the lottery and draw a ticket on a colony ship settling off-world . . . or you can join the service. With the colony lottery a pipe dream, Andrew chooses to enlist in the armed forces for a shot at real food, a retirement bonus, and maybe a ticket off Earth. But as he starts a career of supposed privilege, he soon learns that the good food and decent health care come at a steep price . . . and that the settled galaxy holds far greater dangers than military bureaucrats or the gangs that rule the slums. The debut novel from Marko Kloos, Terms of Enlistment is an addition to the great military sci-fi tradition of Robert Heinlein, Joe Haldeman, and John Scalzi.

An interplanetary battle is renewed in an epic novel of a warring solar system by the author of Ballistic. The war should have been over. But it's not for a group of nationalists grabbing for control. It's been two weeks since a missile with a nuclear warhead tore through the planetary defenses in the most blistering large-scale attack ever committed in the history of the Gaia system. Commander Dunstan Park of the Rhodian navy has been handpicked to command an experimental cruiser that could dictate the course of the escalating conflict. All he has to do is keep the ship from falling into the wrong hands. On Gretia, the powder keg is beyond control. A terrorist attack against civilians draws Idina Chaudhary into a costly battle. It also forces a cautious Aden Jansen back into the fray. Now dedicated to a just cause, he's still keeping his past hidden. The risk of exposing his former alliance could twist not only his fate but also that of his sister, Solveig, heir to the family empire. With no time to waste, Dunstan hits the ground running. But as insurgents threaten the unstable peace, what's ahead for both sides could change the destiny of the Gaia system forever.

Humankind may have won the battle, but a new threat looms larger than ever before... Earth's armed forces have stopped the Lanky advance and chased their ships out of the solar system, but for CDC officer Andrew Grayson, the war feels anything but won. On Mars, the grinding duty of flushing out the twenty-meter-tall alien invaders from their burrows underground is wearing down troops and equipment at an alarming rate. And for the remaining extrasolar colonies, the threat of a Lanky attack is ever present. Earth's game changer? New advanced ships and weapons, designed to hunt and kill Lankies and place humanity's militaries on equal footing with their formidable foes. Andrew and his wife, Halley, both now burdened with command responsibilities and in charge of more lives than just their own, are once again in humanity's vanguard as they prepare for this new phase in the war. But the Lankies have their own agenda...and in war, the enemy doesn't usually wait until you are prepared. As Andrew is once again plunged into the chaos and violence of war with an unyielding species, he is forced to confront the toll this endless conflict is taking on them all, and the high price of survival...at any cost.

The time has come to take the fight to the Lankies. Mars has been under Lanky control for more than a year. Since then, the depleted forces of Earth's alliances have rebuilt their fleets, staffing old warships with freshly trained troops. Torn between the need to beat the Lankies to the punch and taking enough time to put together an effective fighting force, command has decided to strike now. Once again, seasoned veterans Andrew and Halley find themselves in charge of green troops and at the sharp tip of the spear as the combined military might of Earth goes up against the Lankies. But if there's one constant in war, it's that no battle plan survives first contact with the enemy...and the Lankies want to hold on to Mars as badly as humanity wants to reclaim it.

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.