system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Since the Empire was already destroyed, what happened between Return of the Jedi and The Force Awakens for there to be an established army of Storm Troopers running around all nimbly pimbly?
gpt
The DEATH STAR was destroyed, and he Emperor was killed. There's a big difference between taking out the very top and getting rid of the foundations.

I suspect that we're dealing with the Imperial Remnant here.