The Rats and the Bats Series by Dave Freer, Eric Flint

Chip Connolly was a conscripted grunt in trouble: stuck behind enemy lines with a bunch of cyber-uplifted rats and bats. Rats with human speech, but with rat priorities: sex, food and strong drink. And the bats were revolutionaries planning to throw off the human yoke -- with high explosive. Then there was the girl they'd rescued. Rich. Beautiful. With a passionate crush on her "heroic" rescuer... moreChip Connolly was a conscripted grunt in trouble: stuck behind enemy lines with a bunch of cyber-uplifted rats and bats. Rats with human speech, but with rat priorities: sex, food and strong drink. And the bats were revolutionaries planning to throw off the human yoke -- with high explosive. Then there was the girl they'd rescued. Rich. Beautiful. With a passionate crush on her "heroic" rescuer. Her entourage was a screwball Alien tutor, and a cyber-uplifted lemurlike pet galago with delusions of being the world's greatest lover. Of course things only got worse. Seven rats, five bats, a galago, two humans, a sea-urchin-like alien and an elderly vineyard tractor without brakes...against several million inimical aliens. He was going to die. Mind you, not dying could be even more terrible. That girl might get him. less

The intrepid team of mentally uplifted rats and bats, and their vat-born human leader had not only pulled off the only victory the beleaguered colony's feeble military forces had won against the invading aliens, but had also uncovered the secret that the invaders were really a feint, being under the control of the other aliens which the naive humans had thought were their allies... moreThe intrepid team of mentally uplifted rats and bats, and their vat-born human leader had not only pulled off the only victory the beleaguered colony's feeble military forces had won against the invading aliens, but had also uncovered the secret that the invaders were really a feint, being under the control of the other aliens which the naive humans had thought were their allies. Unfortunately, that was the easy part, because now they had to convince their boneheaded military bureaucracy (burdened with incompetents and riddled with quisling humans) of their discovery, and keep from being court-martialed, drugged into submission, or executed by the human traitors. And they had to do this quickly, before the aliens launched their surprise attack. Fortunately, they had found a way around the alien's mental programming. What's more, the daring and resourceful Fluff, apparently the ineffectual pet of one of the colony's ruling class, was on their side. Only Fluff can save us now. . . . less