The Coming War?

My great-grandmother has been predicting that a World War will soon erupt. Now she has been saying this for the last four years (more or less). To quote her: "You will see, there will be a war from all this!". I tend to take my great-grandmother seriously. She was born in 1919 (during WWI), lived through WWII (including the September Campaign and the dreaded Warsaw Uprising), and through the whole lifespan of the Polish Communist regime (including the Martial Law in the 80's and all the unrest in that decade). Personally I have also thought about this possibility. After all, the Great Depression led to an even bigger rise in socialism and nationalism and eventually to World War II. This depression we are in (The Greenspan-Bernanke Depression) will be even larger than the one in the 1930's.
So why is war likely? It is likely because we are currently being ruled by radicals. And as the depression deepens the radicals the people elect will become even more radical. Consider this fact: Back in the 1930's a person like Gordon Brown, who ruled the UK recently, would have been considered a radical. Nowadays in peacetime he is elected as a moderate! Well then how radical must today's radicals be!? Compared to many of today's leftists, Hitler was a moderate! I find it very disturbing that since about the year 1900 there has been no real viable liberal option to choose on the political scene. Today libertarians are considered radical whereas in actual fact they are the only moderates in existence. I don't know how the Leftists have won this intellectual war to this extent. The people generally seem to believe that interventionism is normal while peaceful cooperation is radical... I really am scared, maybe my great-grandmother is right, and there is a World War III on the horizon?

The concern I have now was the same concern expressed by Vilfredo Federico Damaso Pareto (who was the famous pupil of the less known, but perhaps even greater man, Gustave de Molinari) when he wrote in 1901 "All over Europe the Liberal Party is disappearing, as are the moderate parties. The extremists stand face to face: on one side socialism, the great rising religion of our age; on the other side, the old religions, nationalism and imperialism." It seems that Mr. Pareto was 100% correct. Currently there are few countries where there is a third option other than socialism or fascism. The United States, I think, is in most trouble in this regard. And I think we all know what accompanies the rise of mutually-exclusive and yet extremely aggressive totalitarian trends (which both socialism and fascism are). The answer is simple: militarism and war.