 In "Brood War", DuGalle leads the UED as it conquers the Terran Dominion; however, despite his experience, DuGalle believes misinformation planted by former Confederate soldier Samir Duran regarding a psi disruptor, a device that disrupts Zerg communications, on Tarsonis.When DuGalle's lifelong friend Alexei Stukov abandons the fleet, DuGalle allows Duran to assassinate Stukov as a traitor, only realizing his mistake too late.Nevertheless, DuGalle acts to prevent Duran from destroying the psi disruptor and uses it to capture the Zerg Overmind on Char.