The Rehe Guard Army was a corps

Corps

A corps is either a large formation, or an administrative grouping of troops within an armed force with a common function such as Artillery or Signals representing an arm of service...

 of the Manchukuo Imperial Army

Manchukuo Imperial Army

The Manchukuo Imperial Army was the armed force of the Japanese dominated puppet state of Manchukuo, serving as the land forces, along with the Manchukuo Imperial Guards...

, formed after the conquest of the former Chinese province of Rehe

Rehe

Rehe , also known as Jehol, is a defunct Chinese Special administrative district and later province.-Administration:Rehe was located north of the Great Wall, west of Manchuria, and east of Mongolia. The capital of Rehe was the city of Chengde. The second largest city in the province was Chaoyang,...

 during Operation Nekka in 1933. The Rehe Guard Army was created from a section of the Taoliao Army

Taoliao Army

Taoliao Army, was the former Hsingan Reclamation Army that had gone over to the Japanese during the invasion of Manchuria. It was involved in Operation Nekka that captured Rehe. Following which in 1933 it became the Rehe Guard Army...

 and had a nominal strength of 17,945 men

Rehe Guard Army

• Headquarters (301)
• Artillery Unit (854)
• Cavalry Unit (172)
• Infantry Unit (1,294)
• Chengde Area Forces (4,783)
• Chifeng Area Forces (3,414)
• Chaoyang Area Forces (3,977)
• Weichang Area Forces (3,150)
• Xinjing Cavalry Brigade (2,018)
• Seiyan Army (Fangtian Area Forces) (3,760)
• River Patrol Unit (640)

In the 1935 reorganization of the Manchukuo Imperial Army it became the 5th District Army "Chengde" under command of General Chang Hai-peng

Chang Hai-peng

Zhang Haipeng , was a Chinese Northeastern Army general, who went over to the Japanese during the Invasion of Manchuria and became a general in the Manchukuo Imperial Army of the state of Manchukuo.-Biography:...

.