Three new, tiny countries that hate each others guts, hate some neighbors with equal ferocity and the US, at least to some extent.
Who would profit? Well, the arms merchants, for one. The folks who buy and sell governments to get to thier natural resources for another.
Third - I dunno, maybe as suggested, flag makers, folks who sell printing presses for new money, airlines as the current residents flee for thier lives.....
Don't forget the UN will also gain two additional turd-world votes against the US.