Fan Castle

The Battle of Fan Castle (樊城の戦い, rōmaji: Hanjō no Tatakai) is a battle in which Guan Yu sieged the location, which was being dutifully defended by Cao Ren. To defeat Guan Yu and lift the siege, Cao Cao forms an alliance with Sun Quan.

Dynasty Warriors
In an follow up to Liu Bei's seizing of Mt. Ding Jun, Guan Yu, who was stationed in Jing province at the time, decided to drive Wei out of Jing by laying siege to the Wei stronghold at Fan Castle. Cao Ren lead the defense admirably, but Guan Yu initially was very successful by flooding the castle and defeating Pang De and capturing Yu Jin. However, Lu Meng was making plans to seize Jing, and so while Guan Yu was in the north, he took his chance and swept across Jing. When Guan Yu learned that he had been cut off, he retreated to Mai Castle where he made his last stand, but was captured along with his son Guan Ping by Wu. When taken before Sun Quan, he was asked to serve but he refused and was executed along with Guan Ping.

The defeat at Fan castle was due to mass betrayal both by Shu's long term ally Wu, and other Shu officers, such as Mi Fang and Fu Shiren who were to guard Guan Yu's rear immediately surrendered to the advancing Wu forces, and Liu Feng who refused to send reinforcements.

The incident infuriated Liu Bei, as well as his sworn brother Zhang Fei who took out his anger on his subordinates and was murdered. Despite the advice of his advisor and strategist Zhuge Liang and other generals, Liu Bei mobilized for war against Wu and despite having an incredible force that news of which caused Wu officials to turn pale, and several generous peace offerings by Sun Quan, he continued his advance but was forced to flee after the disastrous Battle of Yi Ling and died soon afterwards.

Warriors Orochi
In Warriors Orochi, Hideyoshi and Nobunaga attack an exhausted Orochi army after their victory in Nagashino.

In the sequel, Hideyoshi, Nobunaga and Ieyasu share a dream stage where they combine their might to face Sun Quan, Cao Cao and Liu Bei in a friendly competition.

In the third game, the Wei army blocks the coalition's path to Chengdu, intending on eliminating all those who serve Da Ji. Aya, Guan Yu and Tadakastu aid Ma Chao in fending off against the Wei forces. After the coalition explains why they need Da Ji, Cao Cao, Xiahou Dun and Nuwa join them. After pacifying Luo Castle in the past, Sima Yi returns to Fan Castle with Aya Zhao Yun and Toshiie to ensure that Guo Jia joins them.