| A | B |
|---|
| legio | largest unit of the army |
| pedites | infantry troops |
| calones | slaves who did menial tasks |
| mercatores | traders who sold goods outside the camp |
| muliones | took care of pack animals and luggage |
| fabri | engineers who constructed bridges, etc. |
| exploratores | scouts who would go ahead of the army |
| dux | commanding officer or general |
| legati | second in rank to the dux |
| quaestores | handled pay, equipment, and food supply |
| tribuni militum | lowest ranking commissioned officers |
| centuriones | commanded a century (smallest unit of a legion |
| praefecti | commanded the auxiliaries of the cavalry |
| decuriones | commanded the decuriae (a squad in the cavalry) |
