You need to get serious about understanding the meaning of these two words.
Conquest: I want you to obey me. It's human nature, and you can also understand it as the true motivation of humans. Every individual in a group, whether animal or human, wants to be the leader of the group. It's the desire to conquer. It's common to both humans and animals.
Hostility: I'm going to get you "killed". Is derived from the asymmetry of information between the two parties. The meaning of “information” is a broad concept, which includes country, nation, public opinion, religion ................ Differences in the understanding of these concepts can lead to hostility between the two sides.
Animals protect their territory or food and show hostility when others of their kind approach. This is because it believes that others of its kind will compete for its territory or food. This is just what it thinks, the other kind may just be passing by, but it will still show hostility. This is classic information asymmetry. If it already knows clearly that others of its kind are just passing by, it will not show any hostility.
It is never in the nature of man or animal to kill their own kind directly. This is inconsistent with the most basic natural laws of survival.