Quote Originally Posted by Basileus_ton_Basileon View Post
40km perhaps? The general can always tell his drummers to beat -slighty- faster for a little bit more.... :P
That's a forced march, something the baggage and artillery couldn't keep up with. String too many of those together, and you'd kill all the pack animals and cavalry mounts.

A disciplined army is doing well if it can march 10 miles (16km) in a day. That's assuming country that is conducive to marching, make the terrain rougher and you'll get less.