Steven Barnes 
Star Wars: The Cestus Deception 

The Confederacy is trying to get its hands on some very special battle droids, and the Republic is determined to stop them, so Obi-Wan Kenobi is sent to the planet Ord Cestus, manufacturer of the droids. His mission: diplomacy. But if diplomacy doesn’t work, he will use any means a Jedi can to help keep these potentially super-dangerous weapons out of enemy hands. And diplomacy can’t work. Someone is pulling the manufacturing planet’s strings–someone with an agenda all his or her own, which can’t allow for either side to win control. As Obi-Wan and Jedi Master Kit Fisto uncover the secret plans layer by layer, Obi-Wan learns just how much he can trust a clone warrior…and just how reprehensible war can be, especially in the face of true honour.