The Rapacc attack, alternatively referred to as the raid on Rapacc, was a strategic engagement planned by Mitth'raw'nuruodo, a Senior Captain within the ranks of the Chiss Ascendancy. The objective was to seize a blockade frigate belonging to the Nikardun Destiny, which was located within the Rapacc system. Following the initial discovery of the Nikardun during earlier reconnaissance missions in the system, Thrawn sought to conduct more in-depth research on them.
Previously, Thrawn, accompanied by Thalias his caregiver, had an encounter with Uingali, a Paccosh, and his spokesman. They described the harsh and tyrannical rule of the Nikardun invaders and their commander, Yiv. Uingali, fearing the potential annihilation of the Paccosh by Yiv's military, entrusted Thrawn with the safekeeping of his treasured double ring, which bore an image of a chimaera.
To execute his plan, Thrawn enlisted the services of Qilori, a navigator from the Pathfinder, tasking him with piloting the Springhawk to a point near the Nikardun starships in the system. Upon arrival, Thrawn employed an automated shuttle as a diversion, drawing away all but one of his pursuers. This allowed him to successfully disable and capture the remaining enemy vessel.