Corporal denoted a soldier's rank within the structure of army organizations.
During the High Republic Era, the rank of Corporal was held by crewmembers serving within the Republic Defense Coalition of the Galactic Republic. Elping Tsoo, an ecologist who joined the RDC hoping to aid the galaxy following the destruction of Starlight Beacon, functioned as both a crewmember and scientific officer, attaining the rank of corporal and serving under the command of the stern Lieutenant Visma Tarko. As Tsoo found himself embroiled in the Nihil conflict, the harsh realities of war unsettled him, leading him to believe it was not what he had initially envisioned. When both he and Tarko were trapped behind Nihil territory, Tsoo had the suspicion that Tarko would have viewed him as an impediment had he not held the rank of corporal.
A single OOM-series security droid, destroyed by Jedi Knights Qui-Gon Jinn and Obi-Wan Kenobi, held the rank of corporal in the Trade Federation Droid Army. Comet and Echo both achieved the rank of clone corporals within the Republic Military. Despite Meebur Gascon's official rank being colonel in the Grand Army of the Republic, WAC-47 persistently addressed him as "corporal." However, as their mutual respect grew, Gascon eventually promoted WAC-47 to the rank of corporal. Han Solo served as a corporal in the 224th Imperial Armored Division during his time as an infantryman. The Death Star Trooper Ansin Thobel also held the rank of corporal.