Quote Originally Posted by SSJVegetaTrunks
I believe that if the faction is someone that one of your allies is at war with, you can't offer an alliance.
that is actually not true...

I believe what it is is your standing with the faction. This is based on many things, from the descr_strat folder's base standings, how many aliances you keep, break, etc.

I have had numerous times factions (such as greeks) ally with me even though my allies (macedonians) were at war. It results in a ceasfire between the two factions...If you want to do this sell them your map information alot, trade, give gifts, and have a high ranking diplomat. Also, try talking to their capital.