Just as uncles, grandfathers, nephews and grandsons are appellations, so are fathers, grandparents, children and grandchildren.
Position is to show what a soldier is and what he is in charge of. Rank refers to the rank of soldiers in the army.
Generally speaking, the higher the level, the greater the position. A low position is low. But the position and rank are not exactly the same, and the upper and lower positions are slightly different.
For example, generals are divided into three levels, major general, lieutenant general and general. Below the general are school officials, divided into four levels: major, lieutenant colonel, colonel and senior colonel.
The commander can be a major general or a lieutenant general. A major general can also be a commander or a teacher. The teacher can be a major general or a senior colonel.
As for the commander, it is a very broad position, and the rank of the commander depends entirely on which department the commander belongs to. Commanders of garrison areas or bases are generally senior colonel, major general or lieutenant general, commanders of military areas are generally major general or lieutenant general, and commanders of military areas are generally lieutenant general or general. There is no commander-in-chief of the PLA now. The former commander-in-chief was Marshal Zhu De.