The Second Battle of Csilla was the final major battle of the conquest of the Chiss Ascendancy. It saw the Ascendancy's surrender to and incorporation into the Golden Empire. Having routed the Chiss Expansionary Defense Force headquarters at Naporar and sacked the two CEDF bases at Kinoss and Cormit, the Empire's fleet had thrown the Ascendancy's defenses into disarray. Tariun Sakaros, the Empire's Prime Legate, had been studying Chiss battle tactics while harassing the Ascendancy's shipping and routing Colonial Phalanges on outlying worlds. Feeling confident in his knowledge of their strategies, he pulled the fleet together and launched a final attack on Csilla.