A Separatist admiral known for his cunning and ruthlessness, Trench commanded the Separatist blockade of Christophsis, where Senator Bail Organa and his relief effort were pinned down and in danger of capture.
Anakin Skywalker sought to break Trench's blockade by attacking his flagship with a cloaked stealth ship created by Republic engineers.
Years ago, Yularen faced off against the fearsome Admiral Trench during the Battle of Malastare Narrows. It was a costly battle. Though Trench was believed killed in the battle, Yularen never forgot the admiral's tactics, and recognized them again during the Clone Wars.
With a firm hand, Admiral Trench commands the forces of the Invincible, his Separatist dreadnought. Trench has been tasked to create an unstoppable blockade around the planet Christophsis, and his mighty warship is key to that plan.
Anakin Skywalker thinks there's no technological terror that can't be undone by ingenuity and the power of the Force. He leads the effort to thwart Admiral Trench's blockade around Christophsis, and is not intimidated by the admiral's war record or massive warship.
The Republic's prototype stealth ship is tiny in comparison to Admiral Trench's dreadnought, but it boasts an experimental cloaking system that renders it invisible. Anakin Skywalker commands it in a daring mission to bypass Admiral Trench's blockade.
The Separatist war effort attracts all manner of mercenary commanders with promises of riches and new technology. Admiral Trench is one of the their key fleet officers.