Wars are events in which nations test the strength of their politics, culture, and economy. There has not been a single generation (I take a generation as 60 years), in the last 2500 years, that has not experienced one or more wars. The wars often result in massive death and destruction, but the question is: Could modern civilization have evolved if humanity had not been engaged wars? I think the wars have a natural role to play in human history—they destroy the ineffective regimes and free humanity from the decadent political, intellectual, and religious establishments. By favoring the strong, moral, and competent, and destroying the weak, wicked, and incompetent, the wars engineer a sort of Darwinian evolution of society—they ensure the survival of the fittest regimes and intellectual establishments, and cull the weak and foolish; this leads to a continuous improvement in the scope of civilization. By cleansing this planet at regular intervals of dysfunctional regimes and intellectual establishments, the wars create space for better ideas in philosophy, politics, and science to take root. If humanity stopped fighting wars, the march of civilization will come to an end.