Cancelling Permanent Alliances

[MagisterCultuum]

What would I have to do to allow you to cancel a "permanent" alliance? (SDK changes I assume)

It would be nice if it could also be done through diplomacy, but I was mostly want to have a way to easily cancel it through python.



Oh, also, what would I have to change in order to allow you to trade per-turn and instant trades (like techs and open borders) for each other?

 

[Dom Pedro II]

Apparently this is extremely difficult to do because removing one player from a team causes all sorts of problems so I'm told.