Dragon Strike — E.E. Knight

Three dragon siblings are among the last of a dying breed, and the final hope for their species? survival. AuRon, Wistala, and Copper find themselves at odds over the coming human war. AuRon thinks dragons should have no part in the affairs of humans. Wistala believes dragons and man can peacefully co-exist. And Copper has designs of his own on the world.

And the civilized humans who have turned to Copper for assistance against their savage enemies have just given him the perfect opportunity to fulfill his plans?