Pentagon underestimate the enemy and overestimate themselves. Hence they lose all the wars

Hence the saying: If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat.

If you know neither the enemy nor yourself, you will succumb in every battle.

https://suntzusaid.com/book/3/18

Pentagon underestimate enemy and overestimate themselves. Hence they lose all the wars

If you know neither the enemy nor yourself, you will succumb in every battle…