Books like Their Master's War by Mick Farren

A tactical genius child, Ender Wiggin, is trained through deadly games to defend Earth against an alien menace in this acclaimed science‑fiction classic.

A soldier's harrowing journey across the stars, spanning space and time in Joe Haldeman's hard sci-fi epic war story.

Darwin, a low‑rank Red on Mars, discovers a hidden ruling class and infiltrates the Gold’s Institute in a quest to dismantle a tyrannical society and secure freedom for his people.

Starship Troopers follows Juan Rico, a Terran Federation Mobile Infantry trooper, as he trains, fights, and reflects on the moral and civic duties of military service during an interstellar war with the Arachnids of Klendathu.

In John Steakley's hard‑hit science‑fiction tale, Felix joins armored infantry on a hostile alien world, struggling to keep his mind alive amid a deadly power‑armor engagement.

The Light Brigade follows a young infantryman in a futuristic war on Mars, where soldiers are fragmented into light to reach battlefronts, and his altered memories reveal a truth the corporate command will not admit.

A young German girl's curiosity leads her to uncover the horrors of the concentration camps during World War II.

In the aftermath of a devastating plague, soldiers and survivors battle horror, search for rescue, and navigate fortified bunkers in a tense, post‑apocalyptic ordeal.

A sweeping epic blending history and fantasy, following soldiers through a world where iron reshapes power in the ages that birth the Iron Age Trilogy.

"Tyler Ledger was as unsure of Julie Gillespie's motives for being at his family's Texas ranch as he was of the reception he'd receive when he came face-to-face with his estranged father. Still, he agreed to help the enticing reporter solve a murder if she agreed to stay out of trouble. Julie was on a mission, and she wasn't going to be sidetracked by romantic entanglements--even if Tyler was proving more irresistible by the minute. But with his leave of absence over soon, the soldier's time in Texas was coming to an end ... and Julie's would, too, if they didn't find the killer before she became the next target"--Publisher.

Historian Fergusson provides a revolutionary reinterpretation of the modern era that resolves its central paradox: why unprecedented progress coincided with unprecedented violence, and why the seeming triumph of the West bore the seeds of its undoing. From the conflicts that presaged the First World War to the aftershocks of the Cold War, the twentieth century was by far the bloodiest in all of human history. How can we explain the astonishing scale and intensity of its violence when, thanks to the advances of science and economics, most people were better off than ever before? Wherever one looked, the world in 1900 offered the happy prospect of ever-greater interconnection. Why, then, did global progress descend into internecine war and genocide? Drawing on a pioneering combination of history, economics, and evolutionary theory, Ferguson examines what he calls the age of hatred and sets out to explain what went wrong with modernity. --From publisher description.

When the Soviet Union invades its tiny neighbor Finland in November 1939, Marko volunteers to help the war effort. Even though his leg was weakened by polio, he can ski well, and he becomes a messenger on the front line, skiing in white camouflage through the forests at night. The dark forest is terrifying, and so are the odds against the Finns: the Russians have 4 times as many soldiers and 30 times as many planes. They have 3000 tanks, while the Finns have 30. But a tank is no help in the snowy forest--a boy on skis is. And the Russians don't know winter the way the Finns do, or what tough guerrilla warriors the Finns are. Marko teams up with another messenger, Karl. Gradually Marko learns that Karl's whole family was killed by the Russians. And Karl has a secret--he's really Kaari, a girl who joined up to get revenge for her family's deaths.From the Hardcover edition.