The Confederacy purchases Cuba, and has access to a Pacific port through allied Mexico. Nationalists like Davis and Lee, vindicated by the victory, turn the Confederate Constitution into a formality, and pursue only the best interests of the nation, with fig-leaf legal justifications. Encouraged by Confederate victory, Brazil doesn't abolish slavery, and the Confederates, unable to expand territory to relieve slave pressure, begin selling slaves to Brazil, who burn through them as fast as they can get them. Both countries see persistent economic growth, and the Confederates continue to industrialize. All invasion avenues are heavily fortified, and the Confederacy adopts a conscript-reserve military system to make the most of its manpower. Brazil and the Confederacy establish and entrenched slave power bloc in the Caribbean. The great powers largely don't care as long as they're making money off of trade with them.