OBSERVATION.
THis treacherous practice of the surrendred Belgae hath fortunately discovered the manner of Caesars march,* 1.1 as well in safe passages, as in dangerous and suspected places: which is a point of no small consequence in martiall discipline, being subject to so many inconveniences, and capable of the greatest art that may be shewed in managing a war. Concerning the discreet carri∣age of a march, by this circumstance it may be ga∣thered that Caesar principally respected safety, and secondly conveniency.* 1.2 If the place afforded a secure passage, and gave no suspicion of hosti∣lity, he was content in regard of conveniency, to suffer every legion to have the oversight of their particular carriages,* 1.3 and to insert them a∣mong the troups,* 1.4 that every man might have at hand such necessaries as were requisite, ei∣ther for their private use or publick discipline. But if he were in danger of any sudden attempt, or stood in hazard to be impeached by an ene∣my, he then omitted convenient disposition in re∣gard of particular use, as disadvantageous to their safety; and carried his legions in that rea∣dinesse, that if they chanced to be engaged by an enemy, they might without any alteration of their march or incumbrance of their carriages, receive the charge in that form of battell as was best ap∣proved by their military rules, and the ancient practice of their fortunate progenitours.
The old Romans observed likewise the same respects: for in unsafe and suspected places they carried their troups againe quadrato,* 1.5 in a square march, which, as Livie seemeth to note, was free from all carriage and impediments which might hinder them in any suddain alarme. Nei∣ther doth that of* 1.6 Hirtius any way contradict this interpretation, where he saith that Caesar so disposed his troups against the Bellovaci, that three legions marched in front, and after them came all the carriages, to which the tenth legion served as a rereward; and so they marched pene agmine quadrato almost in a square march.* 1.7 Seneca in like manner noteth the safety of agmen quadratum, where he saith that where an enemy is expected, we ought to march agmine quadrato ready to fight. The most materiall consequence of these places al∣ledged is, that as oft as they suspected any onset or charge, their order in a march little or nothing differed from their usuall manner of imbattel∣ling; and therefore it was called agmen quadra∣tum or a square march, inasmuch as it kept the same disposition of parts as were observed in qua∣drata Acie, in a square body. For that triple forme of imbatteling which the Romans gene∣rally observed in their fights, having respect to the distances between each battel, contained al∣most an equall dimension of front and file: and so it made Aciem quadratam a square body; and when it marched, Agmen quadratum a square march.
Polybius expresseth the same in effect,* 1.8 as often as the place required circumspection; but altereth it somewhat in regard of the carriages: for he saith that in time of danger, especially where the country was plain and champain, and gave space and free scope to clear themselves, upon any ac∣cident the Romans marched in a triple battel of equall distance one behind another, every bat∣tell having his severall carriages in front. And if they were by chance attacked by an ene∣my, they turned themselves according to the op∣portunity of the place either to the right of left hand; and so placing their carriages on the one side of their Army, they stood imbattelled ready to receive the charge.
The contrary form of marching, where the place afforded more security, and gave scope to conveniency,* 1.9 they named agmen longum a long march or train; when almost every maniple or order had their severall carriages attending upon them, and strove to keep that way which they found most easy both for themselves and their impediments. Which order of march as it was more commodious then the former in regard of particularity, so was it unsafe and dangerous where the enemy was expected:* 1.10 and therefore Caesar much blamed Sabinus and Cotta for marching, when they were deluded by Ambi∣orix, longissimo agmine in a very long train; as though they had received their advertisements from a friend, and not from an enemy.
And albeit our modern wars are farre diffe∣rent in quality from them of ancient times,* 1.11 yet in this point of discipline they cannot have a more perfect direction then that which the Ro∣mans observed, as the two poles of their motions, Safety and Conveniencie: whereof the first de∣pendeth chiefly upon the provident disposition of the leaders; and the other will easily follow on, as the commodity of every particular shall give occasion.
Concerning safety in place of danger, what better course can be taken then that manner of imbattelling, which shall be thought most con∣venient if an enemy were present to confront them? for a well-ordered march must either car∣ry the perfect forme of a battel, or contain the distinct principles and elements thereof, that with little alteration it may receive that perfe∣ction of strength which the fittest disposition can afford it. First therefore a prudent and circum∣spect Leader, that desireth to frame a strong and