Legacy of the Force
Bastion, originally Sartinaynian, was the capital world of the Imperial Remnant, the Braxant sector in the Outer Rim Territories, and later the Fel Empire and Empire-in-exile. Bastion was located in the Sartinaynian system at the terminus of the trade route known as the Braxant Run.
Originally, “Bastion” was just a term for the worlds on which the Remnant’s Moff Council and administrative headquarters were temporarily located. By the time of the Caamas Document Crisis, the Imperial government was located on Sartinaynian; it was the last of these worlds, where the rulers of the Empire relocated shortly before peace with the New Republic in 19 ABY.
Bastion’s location remained a closely guarded secret, until the events surrounding the discovery of the Caamas Document in 19 ABY forced Han Solo and Lando Calrissian to locate the planet in an attempt to find a complete copy in the Imperial archives. It later became the capital world of the Imperial Remnant, the Fel Empire, and later Roan Fel’s Empire-in-exile.