The document discusses the negative impacts of war on economies, societies, and the environment, while acknowledging that certain groups like politicians and arms industries may profit from conflict. It highlights the multiple motives behind wars, such as economic gain and nationalism, and concludes that war is ultimately unjustifiable due to its long-lasting detrimental effects on human life and society. The author argues that conflicts should be the last option for resolving disputes and emphasizes the moral implications of warfare.