The Stormtrooper Corps, also referred to as the Trooper Corps, was an autonomous military branch operating under the Imperial Army of the Galactic Empire. The Corps was best known for its near limitless supply of obedient elite stormtroopers trained at Imperial academies across the galaxy, as well as its near fanatical devotion to Galactic Emperor Darth Sidious. Regarded as the Empire's chief enforcers, the Corps served to remind the civilian populace of the Empire's military supremacy.
The Stormtrooper Corps could trace its roots to the Grand Army of the Republic—clone troopers who fought for the Galactic Republic in the Clone Wars. Although Republic forces were absorbed by the Imperial Military, the original generation was eventually replaced by non-clone human recruits and conscripts. During the Imperial Era, the Corps suppressed Separatist holdouts, occupied worlds, and became embroiled in a galaxy-wide conflict with the Alliance to Restore the Republic.
In the aftermath of the Galactic Civil War, both the training and existence of stormtroopers was prohibited and the Corps was disbanded by the Galactic Concordance, a formal peace treaty between the Empire and the victorious New Republic. However, a new generation of stormtroopers came to exist under the First Order, an Imperial-inspired military junta that recognized neither the treaty nor the Republic's sovereignty.