He whose ranks are united in purpose will be victorious.
To persuade your enemy to (retreat) before the fight is to defeat them even before the battle begins. An enemy made ally is no longer an enemy.
Victory comes from finding opportunities in problems.
Weak leadership can wreck the soundest strategy
Ground which can be abandoned but is hard to re-occupy is called entangling.
In the midst of difficulties we are always ready to seize an advantage, we may extricate ourselves from misfortune.