Greetings. This is my first post here, so I'm not entirely savvy to all the forum's unwritten policies, so if I come off as an idiot, go easy on me.
I am interested in what would have been required in terms of historical events to have happened in order to realize a continuous World War I, even into present time. What would have happened to prevent the the Treaty of Versailles? What would have happened to kept the world in a state of perpetual total war?
Hypothetically speaking, if I were to imagine a story that takes place in a 2009 in which World War I never ended and had thrust us into a dark, wartorn dark age, what is a believable alternate history?