Following their conquest of the galaxy circa 3636 BBY, the Eternal Empire originating from the planet of Zakuul constructed a shield bunker situated on the Pel-Ki Ridge found within the Pelath-Ri Marches of the world Voss. This structure was intended to provide support to the Star Fortress positioned in geosynchronous orbit overhead. The bunker, along with its deflector shield generator, was heavily defended by formidable emplacements, walkers, and Zakuulan troops, all under the command of ZK-517P, a high-ranking Skytrooper. Approximately around 3630 BBY, the Outlander—who spearheaded an Alliance in opposition to Zakuul—united the native resistance against the Eternal Empire. They orchestrated an attack on the bunker, which then paved the way for the Outlander and the Gormak named Rokuss to breach its defenses and obliterate it, thereby rendering the Star Fortress vulnerable.
The Voss shield bunker initially appeared in the video game Star Wars: The Old Republic with the release of Knights of the Fallen Empire, a digital expansion from 2015.