Title: The Cobra Trilogy (Cobra, Cobra Strike, Cobra Bargain)
Author: Timothy Zahn
Nutshell: The Cobra Trilogy covers three generations of super-soldier. In the first book, small town boy Johnny Moreau wants to change the odds in the war against an alien menace to the Human worlds. He undergoes surgery to become a super-soldier, with servo-assisted, ceramically strengthened muscles and bones, built in lasers, and an implanted computer loaded with an acrobatic skill set to help drive them. He fights the war with the Trofts, and then afterwards deals with the political ramifications of a segment of the population having been turned into un-retireable weapons.
In the second book, Jonny’s twin sons Joshua and Justin impersonate each other on a covert mission. A planet populated by humans has been discovered far from human-controlled space, but intel suggests they are hostile. The inhabitants don’t seem hostile at first. In fact, they seem unnervingly peaceful. Unsettlingly peaceful. And a strange bird explorers find on a different planet may hold the key to getting back home safely.
In the third book, Justin’s daughter Jessica is made the first female Cobra and sent to surveil the formerly suspicious planet, but she is unexpectedly shot down. Somehow, as an obvious offworlder in potentially hostile territory, she must escape the planet. Od course, she thinks she’ll be able to complete her mission on the way.