Changshan

The Battle of Changshan (常山の戦い, rōmaji: Jōzan no Tatakai) was a battle during Yuan Shao's campaign against the Black Mountain Bandits. During the battle, he was aided by Lu Bu and his men.

Dynasty Warriors
In Dynasty Warriors 5, Yuan Shao faces off against Gongsun Zan and Zhang Yan. He is aided by Lu Bu's forces in this battle. While the main army attacks Gongsun Zan's garrisons in the center, Lu Bu and his men take the western route. Yuan Shao does not trust Lu Bu, who has to prove himself by defeating the enemies in the west. Once Zhang Yan is defeated, Lu Bu is able to earn Yuan Shao's trust eventually. Gongsun Zan attempts to repel Yuan Shao's men with his Baima cavalry, but they are no match for Yuan Shao. The three sworn brothers and Zhao Yun defend the outer castle and have to be defeated in order to open the gates to Gongsun Zan.

The battle returns during Lu Bu's story mode in Dynasty Warriors 8: Xtreme Legends and can be unlocked by saving Wang Yun during the assassination of Dong Zhuo. After Lu Bu slays Dong Zhuo and becomes landless, he joins Yuan Shao and helps him subjugate Gongsun Zan by countering the cavalry and ambushes set up by Gongsun Zan's men and Liu Bei. Rescuing Yuan Shao's army three times will convince Yuan Shao to reinforce Lu Bu during the hypothetical battle at Dingtao.

Warriors Orochi
Changshan appears in Warriors Orochi as a gaiden stage in Wu's story. The Orochi army fights against the resistance forces led by Mitsuhide Akechi. Their main target is the capture of the storehouses and escorting the supply captains into the base. Leading the three captains to the base before defeating Kotarō Fūma will make him join the Orochi army.

Historical Information
Around the year 193, Yuan Shao led a punitive campaign to subdue the Black Mountain Bandits in Ji Province. He first led his men to attack them in Henei. Yuan Shao met the enemy forces at the Luchang hills, where he besieged the bandit leader Yu Du for five days until defeating and killing him and all of his 10,000 men. Yuan Shao then went north and attacked Zuozi Zhangba, defeating him and his followers as well. Finally, he attacked a bandit coalition of Li Damu, Guo Daxian, Huanglong, Qing Niujue, Zuoxiao, Liu Shi, and Yu Digen. Yuan Shao's men killed another 10,000 men and destroyed all of the enemy's camps and defenses, as well as killing the bandits.

After his victory at Luchang, Yuan Shao marched west to Changshan, where he Black Mountain Bandit leader Zhang Yan was located. They first attacked the bandits in the south, then moved north and destroyed the bandit nests along the Taihang mountains. Zhang Yan led 20,000 to 30,000 well trained troops to oppose Yuan Shao, who was aided by Lu Bu in his battle. The two forces clashed and fought for more than ten days. Although many bandits were killed, Yuan Shao's men were exhausted and Yuan Shao ordered his men to retreat. Zhang Yan also withdrew from the battle. Historically, this is the only battle that mentioned Lu Bu riding his prestigious steed Red Hare.