Another point to be noted in the passage we are considering, is the careful provision made by Camillus for the safety of Rome both within and without the city. And, truly, not without reason do wise historians, like our author, set forth certain events with much minuteness and detail, to the end that those who come after may learn how to protect themselves in like dangers.
Further, we have to note that there is no more hazardous or less useful defence than one conducted without method or system. This is shown in Camillus causing a third army to be enrolled that it might be left in Rome for the protection of the city.
Many persons, doubtless, both then and now, would esteem this precaution superfluous, thinking that as the Romans were a warlike people and constantly under arms, there could be no occasion for a special levy, and that it was time enough to arm when the need came. But Camillus, and any other equally prudent captain would be of the same mind, judged otherwise, not permitting the multitude to take up arms unless they were to be bound by the rules and discipline of military service.
Let him, therefore, who is called on to defend a city, taking example by Camillus, before all things avoid placing arms in the hands of an undisciplined multitude, but first of all select and enroll those whom he proposes to arm, so that they may be wholly governed by him as to where they shall assemble and whither they shall march; and then let him direct those who are not enrolled, to abide every man in his own house for its defence.
Whosoever observes this method in a city which is attacked, will be able to defend it with ease; but whosoever disregards it, and follows not the example of Camillus, shall never succeed.