Peace has become most misunderstood paradigm. The unfinished wars bleed as hell. India is one of the worst examples to showcase.
Peace-mongering detente after second world war has destroyed all independent prospects of free sovereign nation states. Actually that has escalated the catastrophe of terrorism to this unprecedented scale.
To continue with the concept of sovereign nation states, wars are inevitable. In the name of UNSC, the super powers restrained the right of the sovereign nations to wage their wars. Instead they monopolized it as their super-power privilege.