Baljos Arnjak was a member of Wraith Squadron during the Yuuzhan Vong War. Skilled in biology, he was stationed at the Borleias garrison after the New Republic seized the planet following the fall of Coruscant to the Yuuzhan Vong. He then participated in the defense of Borleias against Yuuzhan Vong efforts to recapture the world but was later assigned to accompany an intelligence-gathering mission to Coruscant, along with several Jedi.