The radical Mandalorian splinter group known as the Death Watch used this hideout on Mandalore's moon, Concordia, during their resurgence under the leadership of Pre Vizsla. Vizsla, the Governor of Concordia, established the Death Watch's base of operations within one of the abandoned mines left behind on Concordia from the days of widespread beskar mining. There, the Death Watch were able to make use of the old mining equipment in the manufacture of armor and weapons for their troops. Around 21 BBY, Jedi Master Obi-Wan Kenobi discovered the Death Watch's hidden base. He was captured and held within the base's attached mining and production facility, before being rescued by Duchess Satine Kryze, leader of Mandalore's New Mandalorian faction. During their escape, Kenobi fought against several Death Watch soldiers before engaging Pre Vizsla in combat, a fight the Jedi Master took the upper hand in until the entry of a trio of Death Watch troopers. Presented with overwhelming odds, Kenobi and Kryze were forced to retreat, but even after being discovered, the Death Watch continued to operate out of their Concordian base. It was there that Vizsla gathered a Death Watch army in preparation for a take over of Mandalore backed by Confederacy of Independent Systems leader, Count Dooku. However, when the Count's plan fell through, he ordered his Death Watch allies at the base to stand down and await a time when their forces would be better prepared to strike.