[8] His own position, to begin with, must be at the centre of the camp, as this was the safest place, and next to him must come his most faithful followers, as their habit was. Beyond these, in a ring, lay the cavalry and the charioteers. [9] For Cyrus held to it that these troops also needed a safe position: their equipment could not be kept at hand for them, and if they were to be of any use at all they needed considerable time for arming. [10] The targeteers were placed to left and right of the cavalry, and the bowmen in front and rear. [11] Finally, the heavy-armed troops and those who carried the huge shields surrounded the whole encampment like a wall; so that in case of need, if the cavalry had to mount, the steadiest troops would stand firm in front and let them arm in safety. [12] He insisted that the targeteers and archers should, like the soldiers of the line, sleep at their posts, in case of alarm at night, and be ready at any moment, while the infantry dealt with the assailant at close quarters, to hurl darts and javelins at them over the others' heads. [13] Moreover, all the generals had standards on their tents; and just as an intelligent serving-man in a city will know most of the houses, at any rate of the most important people, so the squires of Cyrus knew the ways of the camp and the quarters of the generals and the standards of each. Thus, if Cyrus needed any one they had not to search and seek, but could run by the shortest road and summon him at once. [14] Owing to this clear arrangement, it was easy to see where good discipline was kept and where duty was neglected. With these dispositions Cyrus felt that if an attack should be made, by night or day, the enemy would find not so much a camp as an ambuscade. [15] Nor was it enough, he considered, for a real master of tactics to know how to extend his front without confusion, or deepen his ranks, or get from column into line, or wheel round quickly when the enemy appeared on the right or the left or in the rear: the true tactician must also be able to break up his troops into small bodies, whenever necessary, and place each division exactly where it would be of the greatest use; he must know how to quicken speed when it was essential to forestall the enemy; these and a hundred other operations are part of his science, and Cyrus studied them all with equal care. [16] On the march he varied the order constantly to suit the needs of the moment, but for the camp, as a rule, he adopted the plan we have described.