That’s how most war is tbh - a random small group of people insisting on it. Sometimes it’s two kings, or sometimes it’s just Putin, or a small group of world leaders. But most of the time people hate the most their direct neighbors and family, the people they interact with the most. That’s why most murders are personal and petty, cheating and breaking up, etc, not something big or ideological. War isn’t a very natural state of being for those in it, but it sure makes people at the top very wealthy and keeps young women single and lonely.