Is the Military a Discipline?

The purpose of the first rite is to convince them that they're brothers, right? They must think of the others, tizens, as brothers, a right? Which i think implies that, were they not brothers, they might not defend one another. It's an attempt to stort of make the city like a family, yes? Sch an attempt to extend your self love beyond yourself. Ut, how do you get the military to care for the people in the city who just lack their virtues?"