I wonder whether it would be possible to design a political system which could oscillate between 'war' vs 'peace' conditions, without it being an emergency solu

I wonder whether it would be possible to design a political system which could oscillate between 'war' vs 'peace' conditions, without it being an emergency solution. Seems a rare in history, maybe requires an external environment which is in turn predictably hostile and predictably benign, 3 body problem style