 East Hopei Army

The East Hopei Army was raised from the former soldiers of the Peace Preservation Corps that had been created by the Tangku Truce of 31 May 1933.The Demilitarized Zone Peace Preservation Corps had been the "neutral" force policing the Demilitarized area south of the Great Wall when Yin Ju-keng at the instigation of the Japanese proclaimed an Autonomous Government of Eastern Hopei in November 1935, with its capital at Tungchow.