Xenophon Cyropaedia 1.2.10

[10] They provide for such hunting out of the public treasury; and as the king is their leader in war, so he not only takes part in the hunt himself but sees to it that the others hunt, too. The state bears the expense of the hunting for the ¹ reason that the training it gives seems to be the best preparation for war itself. For it accustoms them to rise early in the morning and to endure both heat and cold, and it gives them practice in taking long tramps and runs, and they have to shoot or spear a wild beast whenever it comes in their way. And they must often whet their courage when one of the fierce beasts shows fight; for, of course, they must strike down the animal that comes to close quarters with them, and they must be on their guard against the one that threatens to attack them. In a word, it is not easy to find any quality required in war that is not required also in the chase.