Sith Genocide

After the end of the Ancient Force War, Republic politicians feared a resurgence in the Old Sith Dynasty. They, in turn, ordered the Sith homeworld of Korriban to be locked down and regularly bombed in secret to prevent the Sith rising again. This lasted for almost 500 years and resulted in the deaths of millions of Sith, both warriors and civilians. An estimated 75% of the planet's population were killed.

After Republic journalists accidentally stumbled on the blockade of Korriban, they reported their findings to the Senate. Many humanitarian organisations and senators petitioned the Republic to stop the bombings. The senate overwhelming voted in favour of stopping the bombings and the Chancellor who was in office at the time stepped down from his position and was arrested by the authorities for war crimes. The bombings stopped in 6035 BBY, where the Sith rose up against the Republic one last time and forced the blockade out of Sith space, although Sith territory was still kept under lockdown.

The Sith, who had secretly been building a massive fleet in secret for the past 500 years in unknown space, quickly rebuilt it's strength and set upon re-conquering the galaxy. In 6024 BBY, the Sith Empire began the Great Annexing and was able to conquer the Republic, finally achieving revenge against the Jedi.