Look back to history when we had quiet peacful times, it shows those leaders and influencial people knew how to form diplomatic relations and keep peace.
No adult in room so anything could be happening.
Since we started recording history, people are at wars. We now just have better weapons that are able to kill more, better cameras to record it. But the interest in war is much lesser than any period in history, very few of the youth are now willing to fight. There are people willing to pay others to watch the show but they won't be physically involved in it.