World War 3

I think World War 3 will not happen because there is no other country that needs to fight a war. Even the USA can back out of the Iraq and Afghanistan wars because there is no need to be fighting in those wars. The world now, in my opinion, does not need to be "upgraded" to the point of war and no country has the need to start the war. The wars that we fight now are unnecessary, they are to get more oil, or find a person that we think did something very wrong, but there is no need to go to war. It would be pointless to go into another world war. And even if there is another world war, I don't think that a lot of countries would join. I do not know what weapons World War 3 will have, but if there is a World War 3, World War 4 will be fought with sticks and stones or bows and arrows.