Per the terms of the Tanggu Truce, the Imperial Japanese Army withdrew to the line of the Great Wall, and regular units of the National Revolutionary Army of the Kuomintang government of the Republic of China was withdrawn to south of the new demilitarized zone.
At the end of 1935, with the proclamation of the Autonomous Government of Eastern Hopei, the Peace Preservation Corps was disbanded, and its forces absorbed into the new East Hopei Army .