LogFAQs > #973984955

The USA/Confederacy would likely never have become a Superpower. If it still did it likely would stagnate/collapse before long due to Northern/slave rebellions and poor leadership.

WW2 if it still happens would've been a far harder conflict for the Allies. Even before joining our material support was critical to the Britian and victory if achieved would likely not have been as total. Nazi Germany and Imperial Japan may survive(war is a stalemate or loss for the Axis but there is not the ability or will to push deep into their territory to topple the regimes) or even win the war. Those regimes may well still be around today.

If the Confederacy took over the North rather then there being 2 countries...its possible they JOIN the Axis and the world is utterly fucked.

If not the USA and Confederacy probably stagnate due to constant conflict and international wariness/shunning due to Slavery/Instability.

This is assuming a decisive overwhelming victory and not just a stalemate.

Otherwise...

"There would have been a second war at a later date which the north would have won. The disparity between the industrial bases of the north and the south was just too great, and would only have gotten larger with time, especially if slavery was preserved as an institution in the south."