Guo Ziyi vs Yamana Sozen

Emperor Suzong appointed Guo Ziyi as commander-in-chief of Tang forces to suppress the An Lushan Rebellion. This appointment gave him authority over all imperial armies and marked the start of his decisive role in the war.

Guo Ziyi, as commander of Tang forces, recaptured Chang'an and Luoyang from rebel forces. This campaign restored the Tang emperor to the throne and preserved the dynasty's rule over China.

Guo Ziyi led Tang and allied Uyghur forces to victory against the rebel army of An Qingxu at Xiangzhou. This battle broke the back of the rebellion and led to the recapture of the eastern capital Luoyang.

Guo Ziyi, with a small force, faced a Tibetan army that had captured Chang'an. Through diplomacy and a show of force, he persuaded the Tibetans to withdraw without a major battle, restoring order.

Yamana Sozen became a Buddhist monk and took the name Sozen, though he remained politically and militarily active. His nickname 'Red Monk' (Aka Nyudo) came from his red monk's robes and his warlike nature.

Sozen led military campaigns that expanded Yamana control to 11 provinces, making him one of the most powerful daimyo in Japan. His aggressive expansion alarmed other clans, particularly the Hosokawa.

Sozen's rivalry with Hosokawa Katsumoto intensified over control of the shogunate. The two kanrei clashed over succession and policy, with Sozen supporting Shogun Yoshimasa's son while Katsumoto backed his brother.

Sozen commanded the Western Army (Seigun) in the Onin War, opposing Katsumoto's Eastern Army. His forces fought fierce battles in Kyoto, burning temples and palaces, and the war spread chaos across Japan.

Sozen died of illness in 1473, the same year as his rival Katsumoto. His death did not end the Onin War, which continued until 1477, but it removed one of the key instigators of the conflict.