Mengjiang was an autonomous area in Inner Mongolia, operating under nominal Chinese sovereignty and Japanese control from 12 May 1936 until after Japan??? defeat in World War II. It consisted of the then-Chinese provinces of Chahar and Suiyuan, corresponding to the central part of modern Inner Mongolia. It is occasionally called M?ngg?gu籀 or Mengkukuo (in analogy to Manchukuo, another Japanese puppet state in Manchuria.) The capital was Kalgan, and the ruler was Chairman Demchugdongrub.