The Battle of Mt. Bailang or Battle of White Wolf Mountain (白狼山の戦い, rōmaji: Hakurōzan no Tatakai) was the last battle of Cao Cao's unification of northern China. At the advice of Guo Jia, Cao Cao marched his forces deep into the territory of the Wuhuan tribes, who hosted the fleeing Yuan brothers after their defeat against Cao Cao.