Does player tresspassing on its territory provoke AI to declare war?

[5trannik]

Does player tresspassing on its territory provoke AI to declare war?

 

[SayHayKid]

No. Though they will eventually ask you to leave. At that point, if you refuse, then you will have to declare war or be automatically removed from their territory.

 

[timerover51]

Does player tresspassing on its territory provoke AI to declare war?

That depends on the AI. Some of the more aggressive ones may declare war on the second or third instance of trespassing. Then you have the case of the AI trespassing on your territory, and declaring war when asked to leave.

 

[5trannik]

That depends on the AI. Some of the more aggressive ones may declare war on the second or third instance of trespassing. Then you have the case of the AI trespassing on your territory, and declaring war when asked to leave.

Thanks for the replies.
And what are AIs that would declare war? Are these the ones that play for civs with aggression level 5 of 5? I'd like to model such a situation. So far, I've tested tresspassing with the Celts on difficulty level Regent (if that matters) and it didn't declare war after a couple of dozens of tresspassings with military units.

 

[vorlon_mi]

Does the AI include other factors, like relative military strength? I agree that aggression probably plays a role, but I haven't noticed underpowered AI being suicidal, declaring war against a much stronger human player just because we tresspassed a lot.

 

[timerover51]

Does the AI include other factors, like relative military strength? I agree that aggression probably plays a role, but I haven't noticed underpowered AI being suicidal, declaring war against a much stronger human player just because we tresspassed a lot.

I am playing on the Warhammer Fantasy map using Conquest units and civilizations, with the map being wraparound. I have the Vikings located in what I would call Alaska. The only civilization that I have contacted is the Iroquois. I am fairly deep into the Medieval Period, closing in on the Physics Tech, and already have gunpowder. I have changed a a fair number of things as well. I had an Iroquois Veteran Warrior and a Conscript Warrior trespass into one of my cities radius. I asked him to leave, and he said that he would. Instead he kept going deeper into the city radius, approaching a vital communications link between cities. When I asked again, he declared War. I wiped out his two units with a Swordsman Army, and started checking what was coming up from the south, through a LOT of mountains. What I found was a steady but small stream of Warriors and Spearman coming at me. Because of the slow movement through the mountains, all of these units are very early Ancient Age units. I am slaughtering them, but the Iroquois keep coming. What the end will be I will eventually find out.

 

[vorlon_mi]

What I have observed is that it's really hard to bribe them NOT to declare, if they really want a fight, and they're unlikely to accept peace while they have troops moving toward me. For example, if they have a couple of galleys with units heading toward me, they will keep hostilities going until the ships arrive. The march of the first two units, right towards a target, is also in character for the AI. I've seen them prioritize cities with no garrison or key resources (like iron) to pillage. Sometimes they declare when they cross the border, sometimes they do when you insist they leave.
The other tactic I have seen the AI use:

1. I declare on them and invade.
2. My stack kills a bunch of their units and take some cities.
3. I ask for peace, to consolidate my gains, allow my troops to heal.
4. The AI troops leave... mostly. That is, their wounded units all move away to heal but 2-3 stay and fortify near one of my newly conquered cities. On MY side of the border, just sitting there, fortified.
5. Two or three turns later, if I ask them to leave, the AI declares again, breaking the peace treaty.

A steady stream of underpowered units.... sounds very familiar. When the AI invade me, they usually send their first wave in a stack (or couple of stacks). The AI sends its reinforcements in a ragged line, as they are built, not in any formation or organization.

I don't think they will entertain a peace offer for 10 turns, while they trickle their underpowered units towards you.

 

[timerover51]

Well, interestingly enough, the Iroquois have an aggression level of 2 in the game I am playing. They did sue for peace after about 10 turns, but I suspect that may not last, given what they have trickling up at me.

 

[Fergei]

I am assuming we are not talking about instant war declaration here? So not like what can happen when the AI catches you spying? We are talking about it contributing to the AI's decision about whether or not to attack you. I will have to look and see if trespassing changes their mood towards 'annoyed'. Its not something I have picked up on, but I am usually only trespassing in the early exploration phase and the AI hasn't learnt to love me by then.

 

[5trannik]

I am assuming we are not talking about instant war declaration here? So not like what can happen when the AI catches you spying? We are talking about it contributing to the AI's decision about whether or not to attack you. I will have to look and see if trespassing changes their mood towards 'annoyed'. Its not something I have picked up on, but I am usually only trespassing in the early exploration phase and the AI hasn't learnt to love me by then.

Yes, my initial question was about if tresspassing shifts AI's attitude to more aggressive towards the trespasser.
When I've done my testing, I noticed that the mood of AI first changed to more negative but during next few moves it changed back to positive (that one AI nation had been positive initially).