Zhang Zuolin, the king of the Northeast, was very famous, he was born as a bandit and later became the leader of the Feng clan. In order to expand his power, Zhang Zuolin sought help from the Japanese, and was once called a "running dog" by the world, but Zhang Zuolin was not completely controlled by the Japanese, and he often embarrassed the Japanese everywhere, and finally died after the Japanese.
The King of the Northwest refers to Feng Yuxiang. In July 1921, Feng Yuxiang led his troops into Shaanxi. Yan Xiangwen, the overseer of Shaanxi, was unable to cope and committed suicide by swallowing opium. Feng Yuxiang then took over as the overseer of Shaanxi. Since then, Feng Yuxiang has been operating hard in Shaanxi for many years, and his territory has expanded year by year, and he has been called the "King of the Northwest", and his troops are also known as the "Northwest Army".
The King of southeastern is Sun Chuanfang. In 1923, Sun Chuanfang was ordered to enter Fujian, and then he quickly defeated Lu Yongxiang, Zhang Zongchang and other great warlords, and became the actual ruler of China's five southeastern provinces in only two years. However, before he could secure the throne of the King of southeastern China, he was defeated in the face of the morale-boosting Northern Expeditionary Army.
The King of the Southwest is not one person, but an umbrella term for three people. They administer three places, Yunnan, Guizhou and Sichuan. The sichuan one is called Liu Xiang, and the Yunnan one is called Long Yun. The two of them made great contributions in the War of Resistance Against Japan and were also feared by the enemy. Wang Jialie of Guizhou has been serving Chiang Kai-shek.