Story time.

So the Hero makes his own HQ on the twin planet of his home world, the Empire will never look there, and begins to form a resistance

After a time the commander of the Death Star figures he needs some target practice, and a previously uncharted planet would make a perfect target, no one even know it was gone.... uh oh....

No one, except for two little inhabitants of this planet, who were the only ones who could escape. The Empire realises this and a hunt begins for the two aliens.

The empire, in an effort to combat its own bureaucracy hires a private paramilitary organization to carry out the hunt, authorizing them to do anything to accomplish the mission.

They chase the two aliens all over the galaxy, until one day...

They found an entire colony of aliens that looked exactly like the two aliens they were tracking down! Turns out that they had cloned themselves many, many times, creating a formidable alien army...

which then attacked and destroyed the Empire. The new alien race became the dominant species of the galaxy