Battle of Mount Qi

Battle of Mount Qi
Part of Zhuge Liang's Northern Expeditions
Map showing the fourth and fifth Northern Expeditions
Date March – August 231[1] Location Southeastern Gansu, China 33°23′44.002″N 104°55′8.000″E / 33.39555611°N 104.91888889°E / 33.39555611; 104.91888889 Result Cao Wei strategic victory, Shu Han tactical victory
Belligerents
Cao Wei	Shu Han Xianbei
Commanders and leaders
Sima Yi Zhang He † Fei Yao Dai Ling Guo Huai Jia Si Wei Ping	Zhuge Liang Wang Ping Wei Yan Wu Ban Gao Xiang Kebineng
Strength
Unknown	Unknown
Casualties and losses
Unknown	Unknown
class=notpageimage| Location within Gansu Show map of Gansu Battle of Mount Qi (China) Show map of China

The Battle of Mount Qi was a military conflict which took place around Mount Qi (祁山; the mountainous regions around present-day Li County, Gansu) between the states of Cao Wei and Shu Han in 231 during the Three Kingdoms period of China. It was also the most vigorous of the five Shu invasions of Wei, resulting in thousands of deaths on both sides. Although Zhuge Liang was able to make significant achievement in the beginning of the battle, the battle finally concluded with a strategic Wei victory due to the insufficient food supply for the Shu Han army. The insufficient food supply was caused by heavy rain and mistakes made by Li Yan.^[2] The Shu regent, Zhuge Liang, spent three years recuperating before launching another invasion on Wei in 234.