The correct answer is D. The destructive nature of warfare.
Step-by-step explanation
During the history of humanity, there have been several civilizations, kingdoms, countries, alliances, and groups that have sought their control and power over a territory due to different motivations such as ideologies, economy, territory, among others. Therefore, war and warfare have been widely developed throughout history, for example in the first civilizations the main weapons were swords, shields, spears, bows, and arrows. However, this has evolved technologically and in production capacity to achieve firearms like those that exist today and other weapons of mass destruction (explosives) with which the war has become massive and has become more destructive, an example of this is the world wars where several countries were devastated and the civil population affected. Therefore, the correct answer is D. The destructive nature of warfare.