Inner peace meaning serenity shouldn't be confused with peace meaning absence of war.
Absence of war can be because superpowers have weapons of mutually assured destruction pointed at each other so that peace is in each's best interest (this is about Nash equilibrium: http://en.wikipedia.org/wiki/Nash_equilibrium
). Yes, that's peace imposed with the threat of violence. Or we could have peace because it is the right - only - way to live. That day will probably come but I suspect we're still a few hundred years away. Aikidoka, for example, might have their own small parts to play in the unfolding of that future history as Robert Kent was maybe suggesting.
Let's try to keep religion out of it.