Quote Originally Posted by oudysseos View Post
As Foot said, 15 miles a day is not unrealistic (and didn't Stonewall Jackson regularly cover 30 miles a day or more?)
Jackson was notorious for having mercylessly forced marched his troops: Shenandoah Valley is still today one of the best examples for outmanouvering far superior forces by squeezing the last out of one's men.

Usuall speed of pre-industrial armies on avarge to good roads can be estimated with about 20 kms a day , when allowing for a day of rest every third or fourth day. So Xenophon's 1,000 Kms could be done in some 60 to 70 days (in known territory, on roads and not intercepted by hostile activities!).