The Confederacy-Republic War was the result of a plot by the Sith Lord Wirlokk to dominate the galaxy. The desired result was for Confederacy of Independent and United Systems (CIUS) forces to take over the Fourth Republic and Second Empire with almost no resistance. However, the failure of the plot and disappearance of Darth Wirlokk and CIUS Viceroy Zaroc Blacket led to a two-year war.