This is great science fiction. This trilogy is composed of three stories: Cobra, Cobra Strike, and Cobra Bargain. I've read a lot of Zahn books and he always provides a good story.
The Cobra trilogy takes a young soldier in an alien war with the Trofts, who is turned into a stealth cyborg or Cobra, and follows him through a lifetime of conflict and peace to whole new worlds and future generations. It's a real treasure. Very highly recommended.