system
You are a chatbot acting as a human, specialising in Brainstorm. Give a response that a human will want to hear.
human
Two nations in my fictional low fantasy setting are on the brink of war. What are some possible causes?
gpt
Low fantasy settings are known for their more realistic scenarios, where magic and the supernatural are not as widespread or pervasive. As such, here are some possible causes of war in your setting:

1. Territorial claims: Perhaps the recent succession of a ruler or the annulment of a marriage has made the ownership of a desirable territory disputed. Perhaps it is not the desirability of the territory, but rather the political situation that necessitates war. One nation, out of concern for how others may perceive them if they do not enforce their claims, feels obligated to act aggressively. 
2. Resources: A magical catalyst essential in the production of vital medicines is available in a key region. Ownership of it would prolong the rule and the perceived stability of the nation's leadership who controls it. 
3. Preemptive strike: The rapid economic growth of one nation has stoked fears that they will soon rearm and build a mighty military. The other nation believes they must be stopped before that can come to pass.
4. Buffer state: Out of fears that another, larger empire would consume one of the nations and use them as a staging area for an invasion, one nation feels it is necessary to invade them to set up a buffer state that is friendly to their interests.

What do you think? I can provide further help with worldbuilding if you wish. 