During the Clone Wars, Pre Vizsla served as governor of Concordia, a moon of Mandalore, and appeared to be a close ally of Duchess Satine Kryze. But Vizsla had another, secret life: he was the leader of Death Watch, a hidden group of Mandalorian commandos seeking control of their planet. In truth, Vizsla despised Satine’s pacifist beliefs and longed to restore Mandalore’s warrior heritage. To accomplish this goal, he formed several alliances with nefarious parties that ultimately led to his end.
The warrior clans of Mandalore were believed to have been wiped out ages ago, their tattered remnants exiled to the Concordia moon. But as the Clone Wars swept the galaxy, the treacherous governor Pre Vizsla resurrected the Mandalorians, and with them, their legendary combat armor that was feared across the galaxy. Backed by Count Dooku and the Separatists, Vizsla began building an army to retake Mandalore from the control of pacifists who were trying to bury violent Mandalore's past. As the coup became inopportune, Dooku abandoned the Death Watch. The warriors wandered the galaxy for a time, then helped conquer Mandalore as part of Darth Maul’s Shadow Collective. Maul then became Death Watch’s leader when he killed Pre Vizsla
The elder leader of a town of Ming Po on Carlac, Chieftain Pieter hated the intruding Death Watch and their bullying ways. The marauding gang set up camp next to Pieter's town, and kidnapped many of the defenseless townspeople to toil as their servants. Pieter bravely confronted Vizsla, demanding the return of his people. Vizsla appeared to concede, but it was all a cruel ploy to teach Pieter a painful lesson.
When the nomadic Death Watch army arrived on the peaceful planet of Carlac, they intruded in the towns of the native Ming Po. Under Pre Vizsla's command, the Death Watch kidnapped many defenseless natives, forcing them to serve their needs as they set up a temporary base of operations. Not even Tryla, the grand-daughter of Chieftain Peiter was spared. Tryla befriended Ahsoka Tano, a Jedi hidden in their midst, but did not live long enough to see her town liberated.