This question isn't really about weapons or armor, but it's still related to ancient militaries so please forgive me if I'm not allowed to ask this here. I just want to know when actual military training became standardized. This question has been haunting me for a while because standing armies weren't really "professional" until the age of Napoleon. For example, ancient Hoplites outside of Sparta were just rich citizens who could afford the equipment needed, as "normal" civillians I imagine they had little more than the most basic training of "pointy end goes into the enemy". So when did the hardcore training regiments we know today come into being? The ones where soldiers are drilled to their maximum extent to keep sure they stay in tiptop shape and have the morale a "real" soldier needs?