The Domain Hul worldship represented the Yuuzhan Vong's worldship which was under the control of Domain Hul.
A key characteristic that set the Domain Hul apart from other worldships during the time of the Yuuzhan Vong War was its state of being; it was in good condition, enabling it to engage in combat. Because of this, Warmaster Tsavong Lah chose this particular worldship to act as the flagship for his father, Supreme Commander Czulkang Lah, throughout the Battle of Borleias. During the conflict, General Wedge Antilles together with Commander Eldo Davip formulated Operation Emperor's Spear. This strategy involved using the Lusankya to collide with the worldship. The goals of this operation were the destruction of a functional worldship and the death of Czulkang Lah. The operation achieved its objectives, leading to the destruction of the Domain Hul.