Ma, the current air force commander, was the deputy chief of staff before taking over as air force commander.

Look at Ma's promotion route: Commander of the Military Region-Assistant to the Chief of Staff-Deputy Chief of Staff-Commander of the Air Force.

Yi's experience is similar to that of Ma, that is, as an echelon cadre in the future, he will receive more experience in joint operations and mutual relations in the General Staff and then take over as commander of the Air Force.

There are always 1 navy and 1 air force among the deputy chiefs of staff of the General Staff.