First, at the national level, war is about survival. Interests run through the whole war. In order to survive and develop, a country can only wage a war of aggression. For example, the island country of Japan has limited resources. Still for security, Russia hit Ukraine to protect its territorial security. Or for invasion and expansion, land and population are the foundation of a country's development, and Israel keeps occupying other countries' land for its own survival and development.

Second, personally, I think no one likes war because they have to face death and separation. But as an individual, it is more often to protect his wife and children and go to the battlefield to kill the enemy. Just because they have to do something doesn't mean they like or want to do it.

In short, I wish world peace, less wars and people live and work in peace and contentment.