B'Alda'ar Base was a planet-based facility located inside the Klingon Empire. Kor and Curzon Dax met at B'Alda'ar Base in 2344, where they discussed Chancellor Kravokh's obsession with Ch'gran. (ST - The Lost Era novel: The Art of the Impossible) Kor again visited B'Alda'ar Base in early 2373, where Jadzia Dax and Worf appealled for his help in informing the Klingon High Council of the attempted assassination of Captains Jean-Luc Picard and Benjamin Sisko by agents claiming to act in Chancellor Gowron's name. (TNG - Slings and Arrows eBook: Enterprises of Great Pitch and Moment)