Conflicts and war brought by the clash between idea, where idea gives human demand. When the demand only for themselves and not for the whole humanity. This idea failed to show us that peace is an absolute existence.
Was the moon above or was it bellow? Surely one person who said the moon was bellow shall nailed by the community that has perspective that moon was above. Bullying, social injustice, is a war in subtle form, it's a real conflict.
While we can not see how conflict arises. We would never see how can we live in peace. We are only then a slave of our very own perspective.