Hormuuz, situated within the Gelgelar system, was an XQ5 Platform utilized by the Rebel Alliance circa 3 ABY. Its function was that of a medical facility.
The Alliance was compelled to retreat from their holdings in the Elrood sector, Hormuuz included, when Imperial Task Force Vengeance was dispatched to that region. During the evacuation, the Empire launched an assault employing Assault Gunboats, the Victory Star Destroyer Stormhawk, and the Imperial Star Destroyer Rage, aiming to obliterate the escaping Rebel transports. Ultimately, the evacuation was successfully executed, but Hormuuz was captured by Imperial forces.
Not long after, the Alliance staged a raid on the station they previously controlled, intending to recover provisions abandoned during the evacuation. As a result of this action, the station was rendered inoperable once more.