Dou Gu vs Jiang Wei

Dou Gu led a Han expeditionary force against the Xiongnu at Yiwulu (modern Hami). He defeated the Xiongnu and established a military garrison, securing the strategic gateway to the Western Regions and reopening the Silk Road.

Dou Gu was appointed Protector General (Duhu) of the Western Regions, overseeing Han interests in Central Asia. He established diplomatic relations with local kingdoms and maintained Han military presence in the region.

Dou Gu, as a general under Emperor He, launched a major campaign against the Northern Xiongnu. His forces advanced deep into the steppe, defeating the Xiongnu and forcing their remnants to flee westward, ending the Xiongnu threat to Han China.

Dou Gu died in battle during the campaign against the Northern Xiongnu. His death marked the end of a distinguished military career that had secured Han dominance over the northern frontier.

After Zhuge Liang's death, Jiang Wei was appointed as the commander of Shu Han's military forces, tasked with continuing the Northern Expeditions against Wei. He was given command of the remaining troops.

Jiang Wei launched his first major campaign against Wei, attacking the Wei-held territories of Longxi and Nan'an. The campaign achieved limited gains but failed to capture key cities.

Over the course of his career, Jiang Wei launched eleven separate campaigns against Wei, each with varying degrees of success. These campaigns drained Shu Han's resources and manpower without achieving a decisive breakthrough.

Jiang Wei's forces were decisively defeated by Deng Ai at Taoxi. The defeat forced Jiang Wei to retreat and weakened Shu Han's military position.

After Deng Ai's surprise attack on Chengdu, Jiang Wei surrendered to the Wei general. He later attempted to restore Shu by conspiring with Zhong Hui, but the plot failed and he was killed.