The Vengeance War was the result of a small military action against Corellia. The demonstration exploded into all-out war. After the Battle of Corellia, the beginning battle, RC-1207 "Sev" joined forces with the GA and added strength, training ten squads of commandos. Void Station and Galactic Research Labs joined with Corellia, and the two factions went at each other with brute force. The Corellians, capturing all available shipyards and weapons factories, took over the Galaxy and vanquished the Galactic Alliance. Jacen Solo killed the Galactic Empress, Lumiya, and took the throne for himself. Resistance groups were scattered across the Galaxy, and some of them were wiped out one by one. The remainders formed the Unity Alliance and opposed the Galactic Confederation. In the Battle of Gala