system
Given the following post, respond as if you're commenting on Reddit:
human
[Star wars] Do stormtroopers make up the entirety of imperial infantry, or a re they just a small elite unit?
gpt
Imperial Army troopers were the standard infantry of the Imperial Army, and the most common soldiers of the Galactic Empire on most subject worlds. Following the Empire's post-Endor fragmentation, their numbers were maintained by periodic conscription from among subject populations. 

Although stormtroopers often worked alongside the Imperial Army, Intelligence and Navy, the Stormtrooper Corps operated independently of all branches of the Imperial Military. Hence, the Corps possessed its own command structure, ranking system and support facilities. Together with the Imperial Royal Guard, stormtroopers answered directly to Emperor Palpatine,but were managed on a daily basis by Stormtrooper Command.