Is there a way to goad an AI nation you support (for independance) to declare war ?

[BaronNoir]

Of course, they tend to do it when you are busy elsewhere, but short of that...

 

[deathbypie]

Only thing I can think of is maxing out your force limit so they think they have a good chance of winning. You could also try to mess up the alliances of the overlord, in various ways.