 In addition, Zhang wanted to assert imperial power by waging a successful campaign against a warlord.When, in light of Li Keyong's unsuccessful campaign against Helian, Helian, Li Kuangwei, and Zhu all submitted petitions requesting that Emperor Zhaozong condemn Li Keyong as a renegade and declare a general campaign against him, Zhang advocated the same.Emperor Zhaozong, despite his own initial reluctance and Yang's advice to the contrary, agreed with Zhang and, in summer 890, ordered a general campaign against Li Keyong, putting Zhang in command of the overall operations against Li Keyong with the official Sun Kui (孫揆) as Zhang's deputy, while ordering all circuits around Li Keyong to attack him.