The Battle Group of Yun-Harla was one of five distinct battle groups serving as part of the Yuuzhan Vong warfleet. It operated under the command of Warmaster Tsavong Lah during the Battle of Ebaq in the year 9.
Upon the Yuuzhan Vong's arrival in the system, this Battle Group, along with the Battle Group of Yun-Yuuzhan, was held as a reserve force. The other three battle groups were actively engaging the fleets led by Admiral Traest Kre'fey and General Keyan Farlander. The arrival of the Smugglers' Alliance forced them to join the ongoing conflict. Nevertheless, the situation quickly deteriorated for the Yuuzhan Vong. Lah, upon realizing the trap, commanded his fleets to retreat back to Yuuzhan Vong Space. However, the Yun-Harla group, along with the Yun-Txiin battle group, were extracted from hyperspace and suffered extensive damage due to mines deployed by the New Republic to disrupt their retreat. Both battle groups experienced significant losses in both warships and personnel because of the battle and the subsequent retreat.