Ijix Harona served as an officer in both the New Republic Defense Force and, subsequently, the Galactic Alliance Defense Force.
Around 16 ABY, Harona, then holding the rank of Lieutenant, found himself stationed aboard the starship, Glorious. His duties involved assisting Colonel Ejagga Pakkpekatt in the pursuit of the elusive Teljkon Vagabond.
Sometime around 28 ABY, Harona had risen to the rank of Colonel and was in command of Scimitar Squadron during the conflict with the Yuuzhan Vong.
In The New Jedi Order: Destiny's Way, Harona's rank is inconsistently portrayed as both Colonel and Major. This discrepancy could be attributed to a temporary wartime promotion or a mere editorial error, particularly given his subordination to Lt. Colonel Jaina Solo in The Final Prophecy. Nevertheless, The Complete Star Wars Encyclopedia explicitly identifies him as a Colonel when he assumes command of Scimitar Squadron.