Not earning their way into any history books, the 155th ‘Razorback’ have been a long standing unit within the Erusean Air Force. Like many squadrons, they can trace their roots to the Royal Erusean Flying Corps. During the first Erusean Civil War that saw the ousting of the Monarchy, the Razorbacks found themselves in the Federal Erusean Air Force, where they participated in the expansion and Annexation of Erusea's smaller neighbors and former vassal states.
During the Continental War, the Razorbacks were apart of the Erusean push across the continent, earning some victories against the scattered ISAF member state air forces before facing a total defeat at the wars end.
Despite force restructuring, the Razorbacks would remain active throughout the Lighthouse War, when details on the squadron's status are questionable at best, with Loyalist and Radical forces using Razorbacks Fighters during the Civil War that came after.