[pmontra]

> the enemy of my enemy is my friend.

I don't want to get into who's your enemy and your enemy's enemy and why, but in general the enemy of you enemy is only the enemy of your enemy. It can be your enemy too.

Lighthearted example: any competitive game between 3 or more players. There might be occasional alliances but everybody is the enemy of everybody else.

[coolspot]

In any competitive game, if you’re ranked as #2 player, but you can join forces with player ranked #3 to eliminate player ranked #1, your best course of action is do that.

After player #1 is defeated, you have a good chance to defeat player #3 (because you’re #2, meaning you’re better player).

Player #3 joins this campaign in hope to defeat you, but also because they can get whatever second place gives.

[edgyquant]

The idea is that you can both defeat the common enemy leaving only one fight afterwards. It doesn’t mean you’re actually bffs with the enemy of your enemy