The Lyjdaa system, a star system, is where Squadron Five of the Galactic Empire's 204th Imperial Fighter Wing suffered significant losses. This occurred half a year prior to the mission aimed at retrieving the Imperial Star Destroyer Celerity in 4 ABY. Following these casualties, Commander Teso Broosh was reassigned to Squadron Five as the new squadron commander through the request of Major Soran Keize of the 204th.
A flashback in the third issue of the Star Wars: TIE Fighter comic series referenced the Lyjdaa system. Jody Houser penned this comic, which was released by Marvel Comics on June 19, 2019.