Wolf among the stars

"A near-future Earth has shaken off the devastating colonization by alien Lokaran invaders and totalitarian rule by the alien's human puppets. But now Earth is flung into galactic intrigue and war. The Lokaran empire teeters on the edge of a meltdown and a cabal of ancient enemies hope to use Earth as a proxy to destroy the empire and rule over a new Galactic dark age. Captain Andrew Roark, the son of heroes of the rebellion and an officer trained in Lokaran space warfare tactics, joins with a highly capable Lokar who opposes the empire but wishes to see it transformed instead of destroyed. Together they must uncover a conspiracy to control Earth and then defeat it. Once more, the freedom of Earth swings in the balance"--