In this scenario the South has won the Civil War in 1862. When the Great War engulfed Europe in 1914, the United States and the Confederate States of America, bitter enemies for five decades, entered the fray on opposite sides: the United States aligned with the newly strong Germany, while the Confederacy joined forces with their longtime allies, Britain and France. But it soon became clear to both sides that this fight would be
different--that war itself would never be the same again. For this was to be a protracted, global conflict waged with new and chillingly efficient innovations--the machine gun, the
airplane, poison gas, and trench warfare.
In a world where the South successfully secceded, the North American continent faces a far uglier reality. Both the United States and the Confederate States are now linked to the European powers by various treaties that only exacerbate their natural enmity. When a terrorist outrage against Austria-Hungary's heir-apparent sparks war in Europe, both countries hurry to war against one another. To complicate matters, Teddy Roosevelt, the President of the United States, also
hungers for revenge against Canada. Thus he sends troops into Canada as well as the Confederacy.
Soon they are bogged down in the horrors of trench warfare on two long fronts. To complicate matters, Socialism has taken root in America in a way it never did in this timeline. A large proportion of the working poor have embraced this philosophy, and furthermore, someone has been smuggling it into the hands of the nominally-emancipated (but heavily restricted) Negro
population of the South. Furthermore, the Mormons are far more hostile to the government in that timeline, and will gladly sieze any opportunity to follow the example of the Southern states and
leave the Union to practice the tenents of their religion in peace (they have not forgotten General Pope's burning of the homes of polygamists during the Second Mexican War).