Star Trek: The Captain's Table, book 01 : War Dragons
L. A. Graf1998

There's a bar called "The Captain's Table," where those of any species who have commanded mighty vessels of every shape and era can meet, relax, and share a friendly drink or two with others of their calling. Sometimes a brawl may break out but it's all in the family, more or less. Just remember, the first round of drinks is always paid for with a story...even beyond the final frontier.

Captain James T. Kirk must join forces with Captain Hikaru Sulu, new commander of the USS Excelsior, to resolve a simmering political situation in a distant star system. Two adventures, more than twenty years apart, tell of the ancient bond between the Nykkus and Anjiri. Their brief ventures into the presence of the Federation resulted in exciting and often deadly encounters. Now Kirk and Sulu sit to tell the tale of their one last chance to end the bloodshed -- before it plunges the Federation into a full-scale interstellar war!