The Xenocide Mission - Ben Jeapes - Bog

The sequel to His Majesty's Starship is filled with complicated politics, ingeniously different aliens and brutal fire fights.Lieutenant Joel Gilmore is part of a multi-species observation team on a hidden base in a distant solar system, when they find themselves under attack by the very aliens they were meant to be watching. Joel and his reluctant partner, Boon Round of the First Breed, must explore the parameters of trust in a lethal confrontation with a deeply alien third species: one with a proven predilection for xenocide on a planetary scale. Meanwhile the humans and the Rusties of the Commonwealth rush to their rescue - but as it turns out, are they any better?