Yong Kai was the prefect

Prefect

Prefect is a magisterial title of varying definition....

 of Jianning Commandery in the state of Shu Han

Shu Han

Shu Han was one of the three states competing for control of China during the Three Kingdoms period, after the fall of the Han Dynasty. The state was based on areas around Sichuan, which was then known as Shu...

 during the Three Kingdoms

Three Kingdoms

The Three Kingdoms period was a period in Chinese history, part of an era of disunity called the "Six Dynasties" following immediately the loss of de facto power of the Han Dynasty rulers. In a strict academic sense it refers to the period between the foundation of the state of Wei in 220 and the...

 period of Chinese history

History of China

Chinese civilization originated in various regional centers along both the Yellow River and the Yangtze River valleys in the Neolithic era, but the Yellow River is said to be the Cradle of Chinese Civilization. With thousands of years of continuous history, China is one of the world's oldest...

. He joined the Nanman

Nanman

Nanman were aboriginal tribes who lived in southwestern China. They may have been related to the Sanmiao, dated to around the 3rd century BC. The Nanman were multiple ethnic groups including the Miao, the Kinh, the Thai, and some Tibeto-Burman groups such as the Bai. There was never a single...

 chieftain Meng Huo

Meng Huo

Meng Huo was popularly regarded as a local leader representing the gentries of the Nanzhong region during the Three Kingdoms era of Chinese history...

 in revolting against Shu Han. During the Shu Han chancellor Zhuge Liang

Zhuge Liang

Zhuge Liang was a chancellor of the state of Shu Han during the Three Kingdoms period of Chinese history. He is often recognised as the greatest and most accomplished strategist of his era....

 led a southern campaign

Zhuge Liang's Southern Campaign

Zhuge Liang's Southern Campaign, also known as the War of Pacification in Nanzhong, refers to a military campaign led by Shu Han chancellor Zhuge Liang to suppress opposing forces in the south in 225 during the Three Kingdoms period of Chinese history...

 to suppress the rebellion, he used a strategy to turn Yong and another rebel leader, Gao Ding, against each other. Yong was killed by Gao's servant He Huang, and the rebellion effectively ended.