A galactic uprising against the Der'kal Order was caused by the Federation's victory on Exegol, where the Der'kal Eternal's fleet was destroyed. While the Federation celebrated on the planet Ajan Kloss, other worlds openly rebelled against the Der'kal's allies, the Der'kal Order, attacking its forces on other planets.
Across the galaxy, the Der'kal Order's forces were attacked by the populations that they had subjugated through military strength. Open rebellions occurred on many worlds. At least one Star Destroyer was destroyed on each of the planets.