A lot of information about the military affairs of Tubo and Tang dynasties are needed

For example, whether the military units of the Tang Dynasty are divisions, army, brigade, regiment or battalion, whistle, team, please help if the great immortals have time. After checking it for a long time, I couldn’t find it. Also, I hope that the great immortals who like this book create some fantasies, especially Uncle Cheng. I really want to see what style he has in your writing. I think it will be wonderful.
Chapter completed!