An enemy of yours is an enemy of mine; an enemy of mine is an enemy of yours; if an enemy of mine is not an enemy of yours, then you're an enemy of mine.
The enemy of my enemy is my friend, men said, but the enemy of my friend is my enemy.
If you aren't destroying your enemies, it's because you have been conquered and assimilated, you do not even have an idea of who your enemies are. You have been brainwashed into believing you are your own enemy, and you are set against yourself. The enemy is laughing at you as you tear yourself to pieces. That is the most effective warfare an enemy can launch on his foes: confounding them.
The enemy of my enemy is my friend.
Your friends are three and your enemies are three. Your friends are: your friend, the friend of your friend, and the enemy of your enemy. Your enemies are: your enemy, the enemy of your friend, and the friend of your enemy.
In order to know your enemy, you must become your enemy.
Maxim 29: The enemy of my enemy is my enemy's enemy. No more. No less.-The Seventy Maxims of Maximally Effective Mercenaries