They've conquered and integrated many other races providing themselves with an incredibly flexible force that can match the strength of any military in the galaxy. The Tau Empire is a young race driven by its ideology. Now the second expansion, Dark Crusade brings forward two completely new races: Tau Empire and Necrons (the rest of five races being known from the previous games of the series) and a brand new single player campaign set in the deserted lands of Kronus. The first expansion pack to Dawn of War, Winter Assault, featured one new race and two single player campaigns. Space Marines rise up against their former allies, the Imperial Guards the traitorous former legions of the Emperor, defeated ten thousand years before, come back as armies of Chaos to take their shot at ruling the deserted planet the destructive Orks join the war the enigmatic Eldar army, through magic and trickery, trying to outmatch all others the young, yet frighteningly efficient race of the Tau Empire wants to control the universe for "The Greater Good" against all living creatures rise the Necrons, that have been lying dormant for 60 million years. The war can only conclude with the total victory of one race and the complete destruction of all the others. The 41st millennium finds the remote planet Kronus as battlefield for a new crusade.