The Battle of Ryloth, also known as the Ryloth campaign, broke out on the planet Ryloth during the Clone Wars.The battle was between the Galactic Republic and the Free Ryloth movement allies, against the Separatist Droid Army of the Confederacy of Independent Systems. The battle would result in the liberation of Ryloth after the retaking of Lessu, in what became known as the Battle of Lessu. Years later, the recapturing of the capital would be named the Hammer of Ryloth in songs.