Vader is bad at only pretending to invade. He rolls over your hill, and the rest of the planet, with his dark legions. I offer in exchange for dominion over the hill the only thing known to be able to stop Vader's forces in their tracks, the thing Stormtroopers tell their kids as horror stories, the most terrifying force in the Star Wars universe. Yes, the hill is now garrisoned by Ewoks.
My hill!