slash11: All of these dictators are enabled by the US but everyone knows that....
You really think Egypt will attack Europe. With what weapons they don't have that much...?
What you should really care about is Iran.
Delixe: It would take just one nation to do something monumentally stupid to start WW3. WW1 started over something very small that snowballed into the Great War. Israel is the country to be most feared about doing something very stupid.
WW 1 is a rather bad analogy for the current situation. True, a single seemingly minor even was the spark that caused the war.
But you can't reduce the causes of WW 1 to the assassination of Archduke Ferdinand.
There were huge tensions between all the major players long before that. In every country, there were people who wanted to go to war; the Austrian and Russian both wanted to assert their influence over the Balkans and were prepared to fight over it, the Germans wanted to fight France and Great Britain over colonization, as well as Russia over Poland, France wanted to pay Germany back for the 1870 defeat and the British thought that Germany was getting too uppity and needed to be taken down a peg.
Most importantly, just about everyone thought it would be a quick and easy war. Nobody was prepared for the horror WW 1 would turn out to be. You've got to remember that there hadn't been a major European war since 1870 and then the Germans won very quickly and rather painlessly.
By contrast, everyone now knows just how bad a war between major, nuclear-weapon wielding countries would turn out to be. That's a powerful incentive to avoid war, and therefore it would take more than a single event, no matter how bad or stupid, to cause WW 3.