I'll be perfectly honest, I don't believe you at all on that one.
If it's not a ruler deciding they have a right to rule some other place, or a ruler's relatives deciding ruling is their right instead, it's someone deciding they want more power or more money than they currently have or someone deciding they don't like that other groups religion.
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If it's not a ruler deciding they have a right to rule some other place, or a ruler's relatives deciding ruling is their right instead, it's someone deciding they want more power or more money than they currently have or someone deciding they don't like that other groups religion.
War is a constant.