The usual assumption made in a CSA victory scenario is that the Confederates win due to European (i.e. British/French) interference in the Civil War, followed by an Entente-Confederate alliance, parallel to one between the Union and the German Empire. I suppose my question is, then, in two parts; what is the easiest way for the CSA to win without British and/or French intervention, and in a world in which the Confederates win, how could the United States still end up allied with the British and French?