After Wu Chu came to power, Wu Wang lu was committed to reform internally, and the people's hearts were greatly supported, while externally he wanted to destroy the number one enemy, the State of Chu. In 512 BC, the State of Wu began a full-scale attack on the State of Chu. The State of Chu ordered Yin Zichang to take the lead in crossing the Han River to fight the Wu army head-on, resulting in three battles and three defeats. In the final battle of Baiju, Zi chang was completely defeated. The Wu army then won five more battles and five victories, attacking the capital of Yingdu, and The King of Chu Zhao fled to Suiguo.