Isn't it ironic that we try to achieve peace by having weapons that can obliterate the world in a matter of minutes.
You contradict yourself. On the one hand you do not want nuclear weapons because it can destroy the whole world, and on the other hand you are opposed to destroy the enemy until he has a chance to destroy the world.
So you would be for attacking North Korea? gotta destroy the enemy before he has a chance to destroy the world.