Gross,
 Good point. War can always be avoided - if the powers opposing war are more influential than those who profit by it. Usually not the case. Largely because of what we are now talking about - jingoism.
  That was far from the case in in imperialist Europe. The British and French betrayed their Arab allies. They bombed and invaded Iraq for the oil in 1920. Mussolini developed fascism early in the 20's.  Japan, Germany, Spain and Portugal soon followed suit. Another war was becoming increasingly inevitable every year.

   In my opinion, after W W I, all the major seats of power throughout the world became fascistic, largely because of the harsh imperialistic terms of the Treaty of Versailles. The fascism of other nations gave the Nazis a wink and a nod to become the most powerful fascist nation. The harsh terms of the Treaty of Versailles was the excuse for Germany to rebuild their army more powerfully than ever.

  WW I was an unmitigated disaster and needs to be regarded as such.