The notice of the establishment of the 19th Asian Games and the 4th Asian Paralympic Games Leading Group issued by the General Office of the State Council of China showed that the members of the group included Cao Qingfeng, the director of the combat bureau of the joint staff of the Central Military Commission.This news means that Jia Jiancheng has stepped down as director of the combat bureau of the Joint Staff of the Central Military Commission.

According to the "Zhengzhi Circle" public account, Jia Jiancheng, 59, is a native of Yiyang, Hunan.

In March 2018, the military's authoritative media disclosed that Jia Jiancheng, the deputy director of the operation of the former General Staff, has served as the director of the combat bureau of the joint staff of the Central Military Commission.

Before Jia Jiancheng, Zhang Jian was the director of the combat bureau of the Joint Staff of the Central Military Commission.Public information shows that Zhang Jian, 59, is from Yiyang, Hunan. He has long worked in the former Guangzhou Military Region. He was the chief of staff of the 42nd Army and commander of the Hubei Military Region.

According to reports, the combat bureau is a subordinate agency of the joint staff of the Central Military Commission established in this round of military reform.Public information shows that the joint staff of the Central Military Commission mainly performs combat planning, command control and combat command guarantee, studying the formulation of military strategies and military needs, organizing combat capabilities evaluation, organizing guidance of joint training, combination and daily combat reserve work.

In addition to the combat bureau, the institutions under the Ministry of Staff of the Central Military Commission also include the Battlefield Environmental Security Bureau, Information and Communication Bureau, Navigation Bureau, etc.

In addition, a new office set up in the combat bureau has aroused external attention.At a regular press conference held by the Ministry of National Defense in March 2016, Yang Yujun, director of the Journalist Bureau of the Ministry of National Defense and a spokesman for the Ministry of National Defense, answered questions about the "Overseas Action Division" on the establishment of the "Overseas Action Division" on the joint staff of the Central Military Commission.

Yang Yujun mentioned that in this round of reforms, the Overseas Action Division was established at the combat bureau of the Joint Staff of the Central Military Commission, responsible for the planning, preparation and implementation of the overseas non -war military operations of the army and the Armed Police Force.

Its main functions include: coordinating overseas military operations, coordinating the organization of international peacekeeping, abroad, retracement of overseas Chinese, and corresponding Chinese and foreign joint training in international and foreign countries.The coordination mechanism, participating in and organizing international exchanges and cooperation in the field of overseas military operations.