King Mokjong called Kang Cho to the capital city of Kaesong with his army in order to stop Kim.
Kang brought a force of 5000 men to the capital and executed Kim Ch'i-yang and his supporters.
Kang merged the Security Council (중추원; 中樞院; chungch'uwon), the Office of Transmission (은대; 銀臺; Ŭndae), and the Institute of Palace Miscellaneousness (선휘원; 宣徽院; sŏnhwiwŏn) into the newly formed Palace Secretariat (중대성; 中臺省; chungdaesŏng).
[3] Soon after this, Emperor Shengzong of Liao attacked Goryeo during the fall of 1010, under the pretext that Kang Cho had committed regicide.
The newly installed King Hyeonjong gave Kang 300,000 men under his command to stop the Khitan invaders.
[5] In the same time, Liao general Yelü Pennu led the Khitan army to attack and capture Samsu (삼수; 三水).
Though his rule was a time of war against the invading Liao, not many deaths were ordered by the general with the exception of King Mokjong and the conspiring scholar-officials.