During the height of the Clone Wars a space battle erupted between the Grand Army of the Republic and forces of the Confederacy of Independent Systems's navy in orbit over Honoghr. In the wake of the battle a damaged Lucrehulk-class Core Ship crashed into the planet's surface, releasing copious amounts of Trihexalophine1138, a deadly toxin that the CIS had developed for use in chemical warfare against the Republic. The chemical proceeded to poison great swaths of Honoghr, killing many millions of Noghri in addition to countless native animals and plant life. At the same time, stray fire from both sides rained destruction down upon the surface, making matters worse.