and the worst policy of all
is to besiege walled cities.
if our forces are ten to the enemy's one,
if five to one,
if twice as numerous,
If equally matched,
if slightly inferior in numbers,
if quite unequal in every way,
12. There are three ways in which a ruler
can bring misfortune upon his army:
13. (1) By commanding the army to advance or to retreat,
being ignorant of the fact that it cannot obey.
16. But when the army is restless and distrustful,
trouble is sure to come from the other feudal princes.
[Essentials for Victory]