How to mod Relations between Countries

[samuel_1991]

As topic, I would like to know where to meddle with relations and the probability of AI declaring war against a particular region over others (Or not to declare war at all).

[Balthagor]

If you check out GC2020.csv in the /Sandbox folder, you'll find &&CVPREL sections for lost of regions. It is however massively tedious to edit this, it's one giant array broken into individual lines. The section defines the "from" region, you specify the "to" region and the impact you want on civ/dip/belli but IIRC it modifies what the base game settings creates, it doesn't set it as an absolute value.