Starfighters of Adumar
Starfighters of Adumar (1999) is the ninth book in the Star Wars: X-wing series. It was written by Aaron Allston.
Summary
The planet of Adumar is an anomaly, settled by anonymous colonists during the early years of the Old Republic and isolated ever since. But now it has been discovered. The Adumari love pilots, so the New Republic's best snubfighter jock, General Wedge Antilles, is dispatched as a diplomat, along with three of Rogue Squadron's finest: taciturn Colonel Tycho Celchu, pessimist Major Derek "Hobbie" Klivian and child-at-heart extraordinaire Major Wes Janson. They are also aided by native guide and sword-fighting champion Cheriss ke Hanadi, New Republic diplomat and former Y-wing pilot Tomer Darpen, and New Republic Documentarian Hallis Saper, who wears a second head (the head of a 3PO protocol droid which she uses as a camera).
Wedge assumes that he will somehow hammer out a treaty and bring the planet of Adumar into the New Republic, but it becomes quickly apparent that all is not as it seems. Firstly, the Empire's best pilot, General Turr Phennir, and three of his best are here too. Secondly, Adumar is not a united planet, and right now Wedge is only talking to its largest nation, Cartann. Thirdly, the Cartannese seem to like nothing better than killing each other for bragging rights, and Wedge is expected to join in—especially since they try to kill him for bragging rights too. (Phennir seems to have no problem with it.) Fourthly, a certain woman whom Wedge is acquainted with, Iella Wessiri, is on-planet as a New Republic Intelligence operative and has been so for the past six months—despite the fact that, supposedly, Adumar was only discovered a few weeks ago. (It also doesn't help that Wedge would like to be a little more than friends with her.) All in all, Wedge has his work cut out for him.