I recently learned that Winston Churchill wrote a piece of recursive alternate history, called If Lee Had Not Won the Battle of Gettysburg, back in 1930. Naturally, it’s really about what would have happened if Lee had won at Gettysburg. Churchill optimistically sees the USA, CSA, and UK re-uniting into an English-Speaking Association, which averts the Great War:
It is no exaggeration to say that had the crisis of general mobilization of August, 1914, been followed by war, we might to-day in this island see income tax at four shillings or five shillings in the pound, and have one and a half million unemployed workmen on our hands.