The Yun-Yuuzhan Battle Group, a key component of the Yuuzhan Vong's forces, participated in the Battle of Ebaq 9 as one of their five distinct battle groups. It is described in more detail at Yun-Yuuzhan.
Tsavong Lah, holding the rank of Warmaster, directly oversaw this battle group. The Yun-Yuuzhan and Yun-Harla battle groups were initially held back as a reserve force. As the conflict shifted against Lah, he personally led a third of the Yun-Yuuzhan Battle Group in pursuit of the Jeedai on Ebaq 9, while instructing the remaining forces to withdraw. Due to receiving the earliest warning about the New Republic's minefield, strategically positioned to impede their retreat, the Yun-Yuuzhan Battle Group sustained the fewest casualties. Notable elements within this group included Kusurrun and Victory Section.