When I read the Three Kingdoms, I am stunned by the scale of the battles and the number of deaths.

In a word, 'wasteful.

I wondered how much more stable the people's lives would have been if these resources had been directed toward domestic affairs.

However, it seems that until 1840, when chemical fertilizers were invented, the world was in a constant state of food shortage.

It was said that fighting for territory was the only survival strategy.

"and now energy, such as LNG and oil, or security"

I think that.

I have been thinking about the book's title recently and have been doing a lot of research.