[3] See "Revenues," iv. 30.

[4] Decadarchs, lit. commanders of ten, a "file" consisting normally
(or ideally) of ten men. Cf. "Cyrop. II. ii. 30; VIII. i. 14. It
will be borne in mind that a body of cavalry would, as a rule, be
drawn up in battle line at least four deep (see "Hell." III. iv.
13), and frequently much deeper. (The Persian cavalry in the
engagement just referred to were twelve deep.)

[5] See "Cyrop." III. iii. 41, 57; VI. iii. 24, 27; VII. i. 15; "Pol.
Lac." xi. 5. These front-rank men would seem to correspond to our
"troop guides," and the rear-rank men to our serre-files to some
extent.

[6] Cf. Aelian Tact. 26, ap. Courier.

The interval between the front and rear-rank men will best be filled
supposing that the decadarchs are free to choose their own supports,
and those chosen theirs, and so on following suit; since on this
principle we may expect each man to have his trustiest comrade at his
back.

As to your lieutenant,[7] it is every way important to appoint a good
man to this post, whose bravery will tell; and in case of need at any
time to charge the enemy, the cheering accents of his voice will
infuse strength into those in front; or when the critical moment of
retreat arrives, his sage conduct in retiring will go far, we may well
conclude, towards saving his division.[8]

[7] {ton aphegoumenon}, lit. "him who leads back" (a function which