The habits of the Scythians were nomadic and wandering, and their country was one vast region of verdant and beautiful, and yet, in a great measure, of uncultivated and trackless wilds. They had few towns and villages, and those few were of little value. They adopted, therefore, the mode of warfare which, in such a country and for such a people, is always the wisest to be pursued. They retreated slowly before Darius's advancing army, carrying off or destroying all such property as might aid the king in respect to his supplies. They organized and equipped a body of swift horsemen, who were ordered to hover around Darius's camp, and bring intelligence to the Scythian generals of every movement. These horsemen, too, were to harass the flanks and the rear of the army, and to capture or destroy every man whom they should find straying away from the camp. By this means they kept the invading army continually on the alert, allowing them no peace and no repose, while yet they thwarted and counteracted all the plans and efforts which the enemy made to bring on a general battle.

As the Persians advanced in pursuit of the enemy, the Scythians retreated, and in this retreat they directed their course toward the countries occupied by those nations that had refused to join in the alliance. By this artful management they transferred the calamity and the burden of the war to the territories of their neighbors. Darius soon found that he was making no progress toward gaining his end. At length he concluded to try the effect of a direct and open challenge.

He accordingly sent embassadors to the Scythian chief, whose name was Indathyrsus, with a message somewhat as follows:

Message to Indathyrsus.

"Foolish man! how long will you continue to act in this absurd and preposterous manner? It is incumbent on you to make a decision in favor of one thing or the other. If you think that you are able to contend with me, stop, and let us engage. If not, then acknowledge me as your superior, and submit to my authority."

The Scythian chief sent back the following reply:

His reply.

"We have no inducement to contend with you in open battle on the field, because you are not doing us any injury, nor is it at present in your power to do us any. We have no cities and no cultivated fields that you can seize or plunder. Your roaming about our country, therefore, does us no harm, and you are at liberty to continue it as long as it gives you any pleasure. There is nothing on our soil that you can injure, except one spot, and that is the place where the sepulchres of our fathers lie. If you were to attack that spot—which you may perhaps do, if you can find it—you may rely upon a battle. In the mean time, you may go elsewhere, wherever you please. As to acknowledging your superiority, we shall do nothing of the kind. We defy you."

The Scythian cavalry.
Their attacks on the Persians.
Braying of the Persian asses.

Notwithstanding the refusal of the Scythians to give the Persians battle, they yet made, from time to time, partial and unexpected onsets upon their camp, seizing occasions when they hoped to find their enemies off their guard. The Scythians had troops of cavalry which were very efficient and successful in these attacks. These horsemen were, however, sometimes thrown into confusion and driven back by a very singular means of defense. It seems that the Persians had brought with them from Europe, in their train, a great number of asses, as beasts of burden, to transport the tents and the baggage of the army. These asses were accustomed, in times of excitement and danger, to set up a very terrific braying. It was, in fact, all that they could do. Braying at a danger seems to be a very ridiculous mode of attempting to avert it, but it was a tolerably effectual mode, nevertheless, in this case at least; for the Scythian horses, who would have faced spears and javelins, and the loudest shouts and vociferations of human adversaries without any fear, were appalled and put to flight at hearing the unearthly noises which issued from the Persian camp whenever they approached it. Thus the mighty monarch of the whole Asiatic world seemed to depend for protection against the onsets of these rude and savage troops on the braying of his asses!