Marching with a known enemy not far off in front, Cyrus must have kept his army in something like battle order, and therefore must have moved slowly. Moreover the discovery of the treason of Orontes must itself have been an alarming fact, well calculated to render both Cyrus and Klearchus doubly cautious for the time. And the very trial of Orontes appears to have been conducted under such solemnities as must have occasioned a halt of the army.

Taking these circumstances, we can hardly suppose the Greeks to have got over so much as thirty English miles of ground in the three entire days of march. The fourth day they must have got over very little ground indeed; not merely because Cyrus was in momentary expectation of the King’s main army, and of a general battle (i, 7, 14), but because of the great delay necessary for passing the trench. His whole army (more than one hundred thousand men), with baggage, chariots, etc., had to pass through the narrow gut of twenty feet wide between the trench and the Euphrates. He can hardly have made more than five miles in this whole day’s march, getting at night so far as to encamp two or three miles beyond the trench. We may therefore reckon the distance marched over between Pylæ and the trench as about thirty-two miles in all; and two or three miles farther to the encampment of the next night. Probably Cyrus would keep near the river, yet not following its bends with absolute precision; so that in estimating distance, we ought to take a mean between the straight line and the full windings of the river.

I conceive the trench to have cut the Wall of Media at a much wider angle than appears in Col. Chesney’s map; so that the triangular space included between the trench, the Wall, and the river, was much more extensive. The reason, we may presume, why the trench was cut, was, to defend that portion of the well-cultivated and watered country of Babylonia which lay outside of the Wall of Media—which portion (as we shall see hereafter in the marches of the Greeks after the battle) was very considerable.

[80] Xen. Anab. i, 7, 20. The account given by Xenophon of this long line of trench, first dug by order of Artaxerxes, and then left useless and undefended, differs from the narrative of Diodorus (xiv, 22), which seems to be borrowed from Ephorus. Diodorus says that the king caused a long trench to be dug, and lined with carriages and waggons as a defence for his baggage; and that he afterwards marched forth from this entrenchment, with his soldiers free and unincumbered, to give battle to Cyrus. This is a statement more plausible than that of Xenophon, in this point of view, that it makes out the king to have acted upon a rational scheme; whereas in Xenophon he appears at first to have adopted a plan of defence, and then to have renounced it, after immense labor and cost, without any reason, so far as we can see. Yet I have no doubt that the account of Xenophon is the true one. The narrow passage, and the undefended trench, were both facts of the most obvious and impressive character to an observing soldier.

[81] Xenophon does not mention the name Kunaxa, which comes to us from Plutarch (Artaxerx. c. 8), who states that it was five hundred stadia (about fifty-eight miles) from Babylon; while Xenophon was informed that the field of battle was distant from Babylon only three hundred and sixty stadia. Now, according to Colonel Chesney (Euphrates and Tigris, vol. i, p. 57), Hillah (Babylon) is distant ninety-one miles by the river, or sixty-one and a half miles direct, from Felujah. Following therefore the distance given by Plutarch (probably copied from Ktesias), we should place Kunaxa a little lower down the river than Felujah. This seems the most probable supposition.

Rennell and Mr. Baillie Fraser so place it (Mesopotamia and Assyria, p. 186, Edin. 1842), I think rightly; moreover the latter remarks, what most of the commentators overlook, that the Greeks did not pass through the Wall of Media until long after the battle. See a note a little below, near the beginning of my next chapter, in reference to that Wall.

[82] The distance of the undefended trench from the battle-field of Kunaxa would be about twenty-two miles. First, three miles beyond the trench, to the first night-station; next, a full day’s march, say twelve miles; thirdly, a half day’s march, to the time of the mid-day halt, say seven miles.

The distance from Pylæ to the trench having before been stated at thirty-two miles, the whole distance from Pylæ to Kunaxa will be about fifty-four miles.

Now Colonel Chesney has stated the distance from Hit to Felujah Castle (two known points) at forty-eight miles of straight line, and seventy-seven miles, if following the line of the river. Deduct four miles for the distance from Hit to Pylæ, and we shall then have between Pylæ and Felujah, a rectilinear distance of forty-four miles. The marching route of the Greeks (as explained in the previous note, the Greeks following generally, but not exactly, the windings of the river) will give fifty miles from Pylæ to Felujah, and fifty-three or fifty-four from Pylæ to Kunaxa.

[83] Xen. Anab. i, 8, 8-11.