After the Battle of Yiling, Wu Dong changed the strategy of getting the first mouse at both ends. Geely and Han reached a settlement, allowing them to return to the track of joint resistance against Cao and refusing to continue to bow to Cao Wei. They kicked out Cao Wei, who had lost his usefulness, and even cut off diplomatic contacts with him.
In 228, Zhuge Liang led the army of Shu Han from Hanzhong and began their first Northern Expedition. At first, their progress was very smooth? Is Nan 'an Tianshui stable? The three counties rebelled against Wei and responded to Zhuge Liang's call. Zhuge Liang forced Wei Mingdi to sit in Chang 'an in person to reassure people. Shu Han launched a military attack, which later contained most of Wei's forces, which provided Wu Dong with an excellent opportunity. Attack at this time, you can take advantage of the western Cao Jun to take care of the situation in the east, make a fortune, and you can also stall the eastern jun to fulfill the Covenant and deal with the actions of the Shu and Han armies.
When planning a military attack, Sun Quan should also consider another deep-seated factor. At this time, the political power of Dongwu has been completed, and the process of Jiangdong has basically completed the integration of various domestic forces, leaving only the last step, which is also the most crucial step, to become the emperor. However, influenced by his own limitations, he urgently needs a major foreign military victory to improve his prestige in the military and create a strong public opinion momentum for his justified claim to the throne. In order to get Cao Xiu hooked, he and Zhou Fang staged a wonderful double spring. Cao Xiong knew the border well and insisted on a decisive battle with Wu Jun. Finally, he was angered by Zhou Fu's bluff, which ruined his life. The Battle of Shi Ting is a model of the perfect combination of conspiracy and conspiracy. Zhuge Liang was encouraged by Wu Dong's defeat of Cao Xiu and started the second Northern Expedition.