Histories

When this answer was brought back to the Scythians, they determined not to meet their enemy in the open field, since they could not get the allies that they sought, but rather to fall back driving off their herds, choking the wells and springs on their way and destroying the grass from the earth; and they divided themselves into two companies.

It was their decision that to one of their divisions, which Scopasis ruled, the Sauromatae be added; if the Persian marched that way, this group was to retire before him and fall back toward the +Azov [39.433,47.1] (inhabited place), Rostov, Rossiya, Russia, Asia Tanaïs river, by the Maeetian lake, and if the Persian turned to go back, then they were to pursue and attack him. This was one of the divisions of the royal people, and it was appointed to follow this course;

their two other divisions, namely, the greater whose ruler was Idanthyrsus, and the third whose king was Taxakis, were to unite, and taking with them also the Geloni and Budini, to draw off like the others at the Persian approach, always keeping one day's march ahead of the enemy, avoiding a confrontation and doing what had been determined.

First, then, they were to retreat in a straight line toward the countries which refused their alliance, so as to involve these, too, in the war; for if they did not of their own accord support the war against the Persians, they must be involved against their will; and after that, the division was to turn back to its own country, and attack the enemy, if in deliberation they thought this best.