Normal activities contribute to the sustaining of life. Clearly, war produces death and destruction, and affects people tragically and with grief they bear with grim stoicism. Those who have experienced it are the first to say honestly they would like a solution to the outstanding danger or more war. Governments have tried to solve it by various means throughout history. In some cases they have succeeded in keeping one country out of war while others continue to make war from time to time.
Humanity still faces the threat.
When the knowledge of how to do that is spread everywhere, to at least some persons in every social group, there will be world peace. In social theory, the basis for an argument by which to effect friendly persuasion of persons to abstain from war is quite simple and clear. All persons live by being members of a species, specifically humanity. No one is made by a particularly national production industry. In that life, all benefit from each other.