Battle March expands Warhammer: Mark of Chaos with two new factions. The Dark Elves, ruled by the Witch King, have sailed from Naggaroth across the Great Ocean to raid and pillage, with their ultimate ambition fixed on retaking Ulthuan — birthplace of all elves and current home of the High Elves. The Orcs & Goblins, united under violent and dim-witted warlords, have launched the "Waagh!-Offensive": a thundering rampage into the heart of the old world that forces the ancient races to mount a desperate defense.