Domain Yo'gand was an early Domain among the Yuuzhan Vong. During the Cremlevian War, the Domain, under the leadership of Yo'gand, was one of the most powerful. The Domain engaged in battle with Domain Steng to see who would rein over the Yuuzhan Vong galaxy. In the Battle of Ygziir, Yo'gand killed Steng and dropped Ygziir's moon into it. With Steng dead, Yo'gand assumed the post of Supreme Overlord of the Yuuzhan Vong, but the galaxy his Domain had fought for was ruined.