The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from The Cavalry General by Xenophon:|
or to take the converse case, that the enemy invades the soil of
Attica, to begin with, he will not invade at all, unless supported by
other cavalry besides his own and an infantry force sufficient to
warrant the supposition that no force on our side can cope with him.
 The reference is doubtless to the Thebans. Unfortunately we do not
know, on good authority, how many troops of either arm they had in
the field at Leuctra or at Mantinea.
 Lit. "without the rest of the city," i.e. the hoplites, etc.
Now, to deal with this vast hostile array, if only the city will
determine to sally out en masse to protect her rural districts, the
prospect is fair. Under God, our troopers, if properly cared for, are