Warstrider: Rebellion (Warstrider Series, Book Two)

In the wake of a breakthrough in the struggle against the Xenos on its frontier worlds, the Hegemony turns its attention to the planet Eridu, where newly-encountered Xenos as well as brewing unrest among the colonists threaten the Hegemony's rule. The ensuing struggle will test loyalties and have a far-reaching impact on the future of human and alien alike.

The second book in Ian Douglas's classic Warstrider military sci-fi series, originally published in 1993. The whole Warstrider series is being re-issued by War Planet Press.