I don't appreciate how the AI seems to declare war on me for no reason. Almost seems easier to play and conquer the world when there are real players as IK they won't randomly declare war on me for attacking someone else. I think two suggestions that would be a great improvement to the game are that there should be a system/note to the player alerting them of why an AI declared war on them as well as a way to use diplomacy with one. I don't like how some AI randomly give you right of way while others declare war or impose trade embargoes on you. A better system would allow a player to know why an AI chooses to impose certain diplomatic affairs on them and for the player to influence an AI so that they can either get peace with one or trade certain things.
The other suggestion would be to change the AI behaviour to that they don't feel as negative towards a player when the player attacks another country. I find it especially odd when an AI seems to declare war on me and when I go to attack them back the other AI in the game get mad at me and declare war on me as well.
Please LMK how you feel about my suggestions and maybe what you would do to fix this issue!
(p.s. IK that declaring war IRL would make countries choose sides and declare war on the attacking country more often, although this is a game that sure is meant to be realistic, yet should also be fun and help the player focus on fighting battles more instead of staying turtled up.)