Sith-Triumvirate War

"They say they want to conquer, but what they're after is extermination. Their only goal is to wipe us out completely, and they'll stop at nothing to accomplish that goal. They're less interested in taking our planets than they are making sure that we can't live on them."

- Grand Master Rend Arcturius The Sith-Triumvirate War, occasionally also referred to as the Eclipse Sith War, was a massive galaxy-spanning conflict between the Eclipse Sith Empire and the Galactic Federation Triumvirate. Preempted for at least three years with the deployment of the Jedi Extermination Squads on various planets in the Outer Rim, the war officially began following Calen Solayr and Darth Rundras' groups' duel on Yavin 4. Immediately following this battle, the Eclipse Sith launched an assault on Gall, easily capturing the moon and gaining their first bastion into the galaxy at large before their ships were destroyed by the combined might of the New Jedi Order and the Triumvirate. However, the war had only just begin.

Aided by their surprise attack and long preparations in advance, as well as the commands of Darth Angra and later Darth Mainyu, the Sith launched a devastating assault on the Triumvirate that allowed them to easily take control of the Outer Rim and the Mid Rim shortly afterwards. Continuing to drive the Triumvirate back, their offensive culminated with assaults on the Core itself, ending with the Siege of Coruscant. After miraculously managing to drive the Sith off their capital, the Triumvirate regrouped their forces and launched a counterattack throughout the galaxy, ending with a direct invasion of Eclipse Sith space. After the failed Battle of Rhelg, the two forces engaged for one last time at Dantooine, which left the Triumvirate forces in tatters and the Sith completely defeated with the death of Darth Mainyu, leading to their surrender.

The war caused the deaths of over hundreds of Jedi and at least quadruple that in civilian causalities. It was also the leading cause for the Triumvirate's restructuring of itself following its conclusion.