I've been trying to provoke a war between my civ and humans for a while now.
In adventure mode, I killed their old law-giver and massacred their two towns..now in fortress mode, it's the third year they come with their caravan, which I always pillage or murder, depending on my mood.
Now, for my surprise, they've sent a diplomat, their caravan is more guarded than usual, and also they seem much more rich/developed in their goods..
So I seized what I wanted and killed their diplomat before he managed to get in my fort to spy on my traps.
Will this lead to a siege, sometime? Or now that their leader is killed, they can't declare war?