During the Galactic Civil War, a group of Rebel Alliance Y-wing starfighters launched an assault on the Imperial-held planet of Ord Biniir, an event known as the First Battle of Ord Biniir—or simply the Battle of Ord Biniir. The 233rd Imperial Fighter Group, tasked with defending Ord Biniir, attempted to fend off the attacking Alliance forces. However, the Rebel starfighters, specifically the Y-wings, proved superior, leading to the Alliance capturing the planet. Regrettably for the Rebellion, the Second Battle of Ord Biniir occurred just days later, when the second TIE Fighter squadron from the 181st Imperial Fighter Wing successfully retook the planet.
The planet of Ord Biniir, situated in the Outer Rim, was under the control of the Galactic Empire during the Galactic Civil War with the Rebel Alliance. The 233rd Imperial Fighter Group, consisting of around six starfighter squadrons, was assigned to protect the planet. In that year, a large amount of Rebel BTL Y-wing starfighters mounted an attack on Ord Biniir. This event, later recognized as the First Battle of Ord Biniir or the Battle of Ord Biniir, aimed to wrest control of the planet for the Alliance. The 233rd's fighters attempted to defend against the Y-wing assault, but the Rebel Y-wings overwhelmed the Imperial fighter wing, resulting in the Alliance seizing Ord Biniir.
The Rebels' successful capture of Ord Biniir served to highlight the effectiveness of the Alliance's Y-wings in combat. Numerous Y-wing pilot veterans who participated in the battle would later recount their experiences at Ord Biniir with pride. However, the Empire responded swiftly. A few days after the initial battle, they dispatched the second TIE Fighter squadron of the 181st Fighter Wing, led by Captain Soontir Fel, with orders to reclaim the planet. During the Second Battle of Ord Biniir, Fel's squadron triumphed over the Y-wings stationed on Ord Biniir, successfully restoring Imperial control over the planet.
In 4 ABY, four years following these events, Soontir Fel was captured by the Rebel Alliance. During his interrogation, he made a brief mention of both the First and Second Battles of Ord Biniir.
The initial mention of the First Battle of Ord Biniir occurred within the Y-wing's entry in The Essential Guide to Vehicles and Vessels, which was released on March 19, 1996. The specifics of the battle were subsequently expanded upon in the twenty-fifth installment of the Star Wars: X-Wing Rogue Squadron comic series, titled The Making of Baron Fel, which was published on November 5, 1997.