The commander is not a military commander, but a military commander who is one level older than the military commander.
A commander is the supreme commander responsible for directing the operations of the whole army, usually serving as the commander of the command of the military unit to which he belongs, and is responsible for formulating operational plans, directing combat operations, and ensuring the safety and smooth execution of tasks by military units. On the other hand, a military commander is a military commander who is responsible for commanding his subordinate troops, and usually serves as the military chief officer of his unit, responsible for leading and managing the military training, political work, and logistical support of his subordinate troops.
The highest rank of commander is the level of the Zhengda Military Region, and the military rank is generally lieutenant general or general. The corresponding posts are commanders of the five major theaters, commanders of the armed police corps, commanders of the navy, commanders of the air force, commanders of the rocket forces, commanders of the army, and commanders of the strategic support forces. The second-level commander is at the level of deputy major military region, and the rank is mainly lieutenant general. The corresponding positions include the commander of the Xinjiang Military Region and the ** Military Region, the commander of the air force and the army of each theater, the commander of the three major fleets of the Navy (the commander of the navy corresponding to the theater), the commander of the naval aviation, and the commander of the Hong Kong garrison.
In the organizational structure of the army, from top to bottom, they are: the supreme commander (usually the commander-in-chief or **), the commander of a large military region, the commander of a group army, a division commander, a brigade commander, a regiment commander, a battalion commander, a company commander, a platoon commander, etc. Among them, the commander of a large military region is usually a general or lieutenant general, and the commander of a group army is usually a lieutenant general or major general.
Therefore, the commander and the corps commander are military commanders of different ranks and cannot be simply compared.