In the year 38 BBY, a conflict unfolded within the Pleknok system of the Unknown Regions. This engagement saw the Chiss Ascendancy, specifically the Boadil family representing its government, initially clash with the Paataatus Hiveborn government. Subsequently, the Ascendancy's Chiss Defense Force joined the fray. The sequence of events began when a Boadil survey ship, present in the system for developmental research, was assaulted by two Paataatus warships, resulting in damage to the vessel. In response, the Ascendancy dispatched the Chiss Defense Force to engage the Paataatus, concurrently conducting their own reconnaissance in anticipation of their future conquest of Pleknok. The Defense Force's assault proved decisive, deterring the Paataatus from returning to Pleknok for a period of nineteen years. Their return occurred when Lappincyk's Jandalin, a patrol ship under the command of a Senior Aide from the Stybla family, arrived at Pleknok to recover a stolen item. The Paataatus then launched an attack on his vessel.
This particular battle is referenced within Thrawn Ascendancy: Lesser Evil, a 2021 novel that concludes Timothy Zahn's Ascendancy Trilogy.