There were three waves of reform during the Warring States Period: the first was the reform of Li Kui of Wei and the reform of Wu Qi of Chu; the second was the reform of King Wei of Qi, the reform of Han Shen Buhu, and the reform of Shang Yang of Qin; and the third was the reform of King Wuling of Zhao.Hu Fu's riding and shooting and King Zhao's reforms.These reform measures all involve the four basic aspects of economy, politics, military, and culture.