This is a sci-fi idea I've been developing for some time; it recently found its way into a Star Wars roleplaying forum but is fairly independent. The Veil is a nebula on the fringes of the galaxy inhabited by a felinoid race called the Fyrokkians. For centuries they existed with no knowledge of other races, content with the belief that life was unique to the Veil. Then the Invaders came in vast ships of unimaginable destructive power. But the nebula fouled the Invaders' systems and hobbled their huge warships, and the Fyrokkians' small but nimble fleet forced them back out. The Invaders retreated, but not before decimating the Fyrokkian homeworld, Fyrokkir, with a ballistic strike. Now the Fyrokkian Clans are divided, and they war on one another for the rapidly disappearing resources within the Veil.