What is going on in the world today?

I can't believe that North Korea tested its nuclear weapons. That is just crazy. I feel like the world leaders are playing who has a bigger penis. Why do we need the capability to annihilate a whole country?? I seriously miss the olden days when we used to fight with swords, yeah those were good times. It's no wonder why so many people don't want to have kids now adays, and who can blame them; war in Iraq, North Korea having massive weapons, wars in Africa, uncurable diseases and so much more. What's next???