In The Name of The Emperor
The bulk of the Imperial Army is made up of Infantry (Heavy and Light), Archers, and Cavalry. Other units that do not fit into the traditional format are attached units and may include clerics, wizards, sorcerers, and dragon riders, among many others.
However the basic format of a Dragon (the largest single formation of soldiers) within the Empire is as such:
|Claw||6 Talons||Smallest Independent Unit|
|Wing||6 Claws||Standard Field Deployment|
|Fang||20||Cavalry (Chariot or Horseback)|
|Maw||50 Fangs||Largest Unit Deployed|
|Tail||5,000||Support (Logistics, Engineers, Etc.)|
And yes, I know the ratio of support to soldiers is off, but I’m just amused I remembered to leave them in.