Jiangling County
In 222, Cao Pi summoned Zhang He and Cao Zhen for an audience with him in the Wei capital Luoyang, and then ordered them, Xiahou Shang and other generals to lead armies to attack Jiangling County, which was controlled by Wei's rival state, Eastern Wu. During the battle, Zhang He supervised the Wei forces as they captured an island on the Yangtze River and started constructing a small castle on it. The battle had an inconclusive overall result because the Wei forces withdrew on their own without making any significant gains.