Exo Series by Fonda Lee

It’s been a century of peace since Earth became a colony of an alien race with far reaches into the galaxy. Some die-hard extremists still oppose alien rule on Earth, but Donovan Reyes isn’t one of them. His dad holds the prestigious position of Prime Liaison in the collaborationist government, and Donovan’s high social standing along with his exocel (a remarkable alien technology fused to his body) guarantee him a bright future in the security forces... moreIt’s been a century of peace since Earth became a colony of an alien race with far reaches into the galaxy. Some die-hard extremists still oppose alien rule on Earth, but Donovan Reyes isn’t one of them. His dad holds the prestigious position of Prime Liaison in the collaborationist government, and Donovan’s high social standing along with his exocel (a remarkable alien technology fused to his body) guarantee him a bright future in the security forces. That is, until a routine patrol goes awry and Donovan’s abducted by the human revolutionary group Sapience, determined to end alien control.When Sapience realizes whose son Donovan is, they think they’ve found the ultimate bargaining chip . But the Prime Liaison doesn’t negotiate with terrorists, not even for his own son. Left in the hands of terrorists who have more uses for him dead than alive, the fate of Earth rests on Donovan’s survival. Because if Sapience kills him, it could spark another intergalactic war. And Earth didn’t win the last one... less

Earth's century of peace as a colony of an alien race has been shattered. As the alien-run government navigates peace talks with the human terrorist group Sapience, Donovan tries to put his life back together and return to his duty as a member of the security forces. But a new order comes from the alien home planet: withdraw. Earth has proven too costly and unstable to maintain as a colony, so the aliens, along with a small selection of humans, begin to make plans to leave... moreEarth's century of peace as a colony of an alien race has been shattered. As the alien-run government navigates peace talks with the human terrorist group Sapience, Donovan tries to put his life back together and return to his duty as a member of the security forces. But a new order comes from the alien home planet: withdraw. Earth has proven too costly and unstable to maintain as a colony, so the aliens, along with a small selection of humans, begin to make plans to leave. As word of the withdrawal spreads through the galaxy, suddenly Earth becomes vulnerable to a takeover from other aliens races. Aliens who do not seek to live in harmony with humans, but will ravage and destroy the planet.As a galactic invasion threatens, Donovan realizes that Sapience holds the key that could stop the pending war. Yet in order to save humankind, all species on Earth will have to work together, and Donovan might just have to make the ultimate sacrifice to convince them. less