Unbreakable

When a female soldier is deployed to a remote planet, she finds herself on the frontlines of an interstellar war in this sci-fi military adventure.

Situated in the buffer zone between two rival human empires, the colonists of the planet Montana are used to being left to themselves. Even as a provisional member of the Republic of Aligned Worlds, Montana merits little consideration—until it becomes the flashpoint in an impending interstellar war.

In the face of pirate raids, the RAW deploys its infantry to stabilize the region. Leading the assault is Marine Corps Lieutenant and Montanan expatriate Promise Paen of Victor Company. Years ago, her father was killed in such a raid. While she has no desire to return to her birthworld, payback will be sweet.

Meanwhile, the nefarious Lusitanian Empire, is watching with great interest as events unfold in the Montana system. Their forces have been awaiting the right moment to gain a beachhead in Republic territory, and with Promise's Marines decimated, they believe the time to strike is now.