I will be able to forecast which side will be victorious and which defeated.
When a general, unable to estimate the enemy's strength, allows an inferior force to engage a larger one, or hurls a weak detachment against a powerful one, and neglects to place picked soldiers in the front rank, the result must be rout.
Defeat the enemies strategy.
The natural formation of the country is the soldier's best ally
If ignorant both of your enemy and yourself, you are certain to be in peril.
Generally in war the best policy is to take a state intact; to ruin it is inferior to this.