WWI set in motion an arc of events that ended with the fall of the Soviet Union - since then we are in an arc of the rise of Islamic conflict
I would argue that this arc of events did not end with the fall of the USSR and is not ended today...when you consider that the Mideast was arbitrarily carved up into the nations we know today after the collapse of the Ottoman empire post WW1, and including the Balfour declaration 1917, laying the foundation for the creation of Israel.