Because both parties are in a competitive relationship, the food resources within their territories are limited. If you eat one more bite, it means I get one less; the conflict is hard to resolve.
One must understand, even resources in the universe are finite. Be it stars, planets, minerals, or various natural resources, they have limits, and many are not easily renewable.
Therefore, the Yiyun Civilization will actively target any civilization within its sphere of influence that reaches Level 3 standards.
Moreover, in this process, through the occupation and destruction of other civilizations, they often can seize the technological knowledge of others, further strengthening themselves.
