Faceless, a mercenary group linked to the Rebel Alliance, was known to exist. It is documented that this organization executed a terrorist attack on the Core World of Esseles in 2 ABY (37:1:28). The strikes took place concurrently at a significant fuel storage facility on the island of Grande Hyet and at the Imperial base located at Tralee. The Indomitable deployed soldiers to the sites that were affected as part of the reaction to the attacks.
According to Darpa SectorNet, the attacks resulted in over 50 fatalities and 250 injuries. The damage caused 50 million credits' worth of destruction, marking it as the most devastating assault on Esseles since the Algeran Faction engaged in riots following Palpatine's ascension to power. The reaction to the Faceless attacks was delayed because of internal conflicts between Cambira Ralle, the president of Esselian Hall, and Imperial Governor Griff Takel.