Where did they keep the mules in garrison?

[Paralus]

Exact figures are discussed by Roth in detail, but as a very rough guideline, each animal requires 2-5 kg of hard fodder per day, or 10-14 kg in pasturage, and roughly 20 litres of water per day. Taking the rough figures for 'de minimis' number of animals per Legion I quoted earlier, this would mean each Legion had a broad daily requirement of some 4,000-10,000 Kg (4.4- 11 U.S. tons) of hard fodder or the equivalent of 20,000-28,000 Kg (22-30 U.S. tons) in pasturage and 40,000 litres(10,400 U.S. gallons) of water per day.....just for the animals alone ! hock:

Now you know why most ancient campaigns were carried out along river valleys - for water and transport.....

And if those figures are are more than just ball-park, the armies accorded Persia by the Hellenocentric sources will have always marched to war by way of the Mississippi Valley!

Yes, I know, A hobby horse....