We have a wonderful "technological" society that works, mostly by pure luck.
So many of our systems are so fragile, and so vulnerable, that anyone with any knowledge could take them out.
This includes a person armed only with a shovel.

So, WMDs, the only people stupid enough to use them are govern-cements.
To everyone else its, I still have to live here.

And the way this will be solved is seen in the difference between a home schooled kid and a govern-cement schooled kid. In govern-cement school you are shown that force is the only way to do anything, and that all interactions boil down to who brings the most force. Whereas the home schooled kid has learned about self reliance and win win negotiation. (actually it is very apparent, unless you are indoctrinated for 12 years upon the use of force)

So, in the near future, people will start from the position of, going to war is stupid. Doing so will get neither of our needs/wants met (at the bare minimum). And thus will begin world peace.