campaign_db_ai

[nikolai1962]

Yep, just saying you get some naval invasions between particular pairs of regions with force_invade set to false. scotland still lands near bruges for example..

[Re Berengario I]

Yep, just saying you get some naval invasions between particular pairs of regions with force_invade set to false. scotland still lands near bruges for example..

Because Bruges is the nearest rebel province they can get, it is not a mission, it's the XML. To stop naval invasion you could try to remove this possibility in the descr_sm_factions with "prefers_naval_invasions" set to no.

I still don't see how it could be desiderable but whatever.

Btw, when you use the frontline balance to determine your invasion priorities take in count that the value is faction-wise, aka all the border, and not just a border with a region.
So for example if you use frontline balance with rebel faction and the faction is bordering the rebels in a lot of points (for example Russia in vanilla) the XML value is the overall balancing of the troops in the bordering regions. So even if one region is pratically ungarrisoned the AI can't easily take advantage of it if the others bordering regions are filled with troops.

Once the invasion is triggered though it seems that the AI will automatically attack the softest target/nearest target (it should be an algorithm which calculates desiderability based on these 2 factors), but this is a hardcoded behaviour I presume.