War is an evolution on a societal organization level. Survival of the fittest. Through wars, we get to find out which system better and organizational structur

War is an evolution on a societal organization level. Survival of the fittest. Through wars, we get to find out which system better and organizational structure fits better in the current world. Is it a fake democracy, anarchy, or an autocracy? Who will survive in the end? What kind of balance between military, science and economy works the best? What is more important, human rights of all in and out groups, or cohesion of the main societal group? Should the decision makers be people we elect, or "objectively" most capable and smartest individuals. We all played Civilization, and we know that different societies have different trade-offs and balances. The principle is the same in the real world, just more nuanced and complex. And it takes decades to show the results. Back to the question if the warfare make societies more complex? Maybe, but only in cases where more complex societies win the war, which is not always. We may consider current Afghanistan under Taliban one of the simplest societal structure, and they won hands-down against a complex alliance of complex organized societies.