The North Shanxi Autonomous Government was an administratively autonomous component of Mengjiang from its creation in 1937 to its complete merger into Mengjiang in 1939. Following the Japanese invasion of China in July 1937, regional governments were established in Japanese-occupied territories. After Operation Chahar in September 1937, which extended Japanese control to northern Shanxi region, more formal control of the area was established through the creation of the North Shanxi Autonomous Government, as well as the South Chahar Autonomous Government to the east of Shanxi.

Mengjiang, also known as Mengkiang or the Mongol Border Land, officially the Mengjiang United Autonomous Government, was an autonomous zone in Inner Mongolia, formed in 1939 as a puppet state of the Empire of Japan, then from 1940 being under the nominal sovereignty of the Reorganized National Government of the Republic of China. It consisted of the previously Chinese provinces of Chahar and Suiyuan, corresponding to the central part of modern Inner Mongolia. It has also been called Mongukuo or Mengguguo. The capital was Kalgan, from where it was under the nominal rule of Mongol nobleman Demchugdongrub. The territory returned to Chinese control after the defeat of the Japanese Empire in 1945.