"Pledge to Protect" in multiplayer

[Legioner22]

Does pledge of protection for city-states have any disadvantages while playing in multiplayer without AI? Can I pledge absolutely all city-states for giving +5 influence bonus, or there may be any side effects if I do not protect them?

 

[DracoTheGreat]

I think it can also bring you in war if the CS you are protecting is attacked.

And, obviously, it adds the +5 Influence Bonus, so there's that.

 

[BlackWizard]

You should always pledge to protect in multiplayer. It makes harder for other players to demand tribute. They of course might get angry and puppet your capital as revenge